./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --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_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/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 d28fd50bd3f7e49bee026aec860ad9015a4fdfba .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:22:55,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:22:55,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:22:55,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:22:55,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:22:55,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:22:55,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:22:55,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:22:55,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:22:55,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:22:55,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:22:55,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:22:55,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:22:55,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:22:55,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:22:55,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:22:55,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:22:55,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:22:55,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:22:55,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:22:55,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:22:55,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:22:55,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:22:55,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:22:55,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:22:55,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:22:55,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:22:55,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:22:55,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:22:55,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:22:55,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:22:55,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:22:55,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:22:55,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:22:55,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:22:55,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:22:55,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:22:55,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:22:55,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:22:55,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:22:55,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:22:55,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:22:55,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:22:55,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:22:55,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:22:55,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:22:55,265 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:22:55,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:22:55,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:22:55,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:22:55,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:22:55,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:22:55,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:22:55,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:22:55,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:22:55,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:22:55,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:22:55,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:22:55,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:22:55,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:22:55,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:22:55,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:22:55,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:22:55,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:22:55,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:22:55,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:22:55,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:22:55,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:22:55,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:22:55,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:22:55,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:22:55,272 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_fee295a7-3f37-46e9-9202-56e7e1ac6956/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28fd50bd3f7e49bee026aec860ad9015a4fdfba [2020-11-30 00:22:55,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:22:55,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:22:55,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:22:55,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:22:55,592 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:22:55,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/../../sv-benchmarks/c/locks/test_locks_5.c [2020-11-30 00:22:55,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/data/caa894af2/83618d4d7f5a4b4c94245540bfe86fff/FLAG57f46b26a [2020-11-30 00:22:56,301 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:22:56,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/sv-benchmarks/c/locks/test_locks_5.c [2020-11-30 00:22:56,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/data/caa894af2/83618d4d7f5a4b4c94245540bfe86fff/FLAG57f46b26a [2020-11-30 00:22:56,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/data/caa894af2/83618d4d7f5a4b4c94245540bfe86fff [2020-11-30 00:22:56,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:22:56,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:22:56,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:56,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:22:56,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:22:56,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:56" (1/1) ... [2020-11-30 00:22:56,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbff7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:56, skipping insertion in model container [2020-11-30 00:22:56,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:56" (1/1) ... [2020-11-30 00:22:56,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:22:56,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:22:56,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:56,962 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:22:56,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:57,001 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:22:57,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57 WrapperNode [2020-11-30 00:22:57,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:57,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:57,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:22:57,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:22:57,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:57,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:22:57,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:22:57,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:22:57,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... [2020-11-30 00:22:57,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:22:57,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:22:57,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:22:57,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:22:57,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/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 00:22:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:22:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:22:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:22:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:22:57,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:22:57,524 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 00:22:57,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:57 BoogieIcfgContainer [2020-11-30 00:22:57,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:22:57,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:22:57,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:22:57,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:22:57,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:22:56" (1/3) ... [2020-11-30 00:22:57,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e394147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:22:57, skipping insertion in model container [2020-11-30 00:22:57,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:57" (2/3) ... [2020-11-30 00:22:57,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e394147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:22:57, skipping insertion in model container [2020-11-30 00:22:57,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:57" (3/3) ... [2020-11-30 00:22:57,551 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-11-30 00:22:57,580 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:22:57,595 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:22:57,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:22:57,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:22:57,653 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:22:57,654 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:22:57,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:22:57,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:22:57,654 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:22:57,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:22:57,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:22:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-30 00:22:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:22:57,676 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:57,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:57,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:57,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:57,683 INFO L82 PathProgramCache]: Analyzing trace with hash -161811697, now seen corresponding path program 1 times [2020-11-30 00:22:57,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:57,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318289040] [2020-11-30 00:22:57,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:57,884 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 00:22:57,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318289040] [2020-11-30 00:22:57,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:57,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:57,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706210838] [2020-11-30 00:22:57,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:57,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:57,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:57,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:57,929 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-11-30 00:22:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,036 INFO L93 Difference]: Finished difference Result 54 states and 86 transitions. [2020-11-30 00:22:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 00:22:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,058 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:22:58,058 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:22:58,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:22:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 27. [2020-11-30 00:22:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 00:22:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 46 transitions. [2020-11-30 00:22:58,099 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 46 transitions. Word has length 12 [2020-11-30 00:22:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,099 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 46 transitions. [2020-11-30 00:22:58,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2020-11-30 00:22:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:22:58,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:22:58,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,103 INFO L82 PathProgramCache]: Analyzing trace with hash -971158323, now seen corresponding path program 1 times [2020-11-30 00:22:58,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452304870] [2020-11-30 00:22:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,164 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 00:22:58,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452304870] [2020-11-30 00:22:58,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544232863] [2020-11-30 00:22:58,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,169 INFO L87 Difference]: Start difference. First operand 27 states and 46 transitions. Second operand 3 states. [2020-11-30 00:22:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,239 INFO L93 Difference]: Finished difference Result 64 states and 109 transitions. [2020-11-30 00:22:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 00:22:58,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,241 INFO L225 Difference]: With dead ends: 64 [2020-11-30 00:22:58,241 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:22:58,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:22:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-11-30 00:22:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 00:22:58,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 62 transitions. [2020-11-30 00:22:58,251 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 62 transitions. Word has length 12 [2020-11-30 00:22:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,252 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 62 transitions. [2020-11-30 00:22:58,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2020-11-30 00:22:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:22:58,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:22:58,254 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,255 INFO L82 PathProgramCache]: Analyzing trace with hash -720980343, now seen corresponding path program 1 times [2020-11-30 00:22:58,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521472913] [2020-11-30 00:22:58,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,343 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 00:22:58,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521472913] [2020-11-30 00:22:58,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574893024] [2020-11-30 00:22:58,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,346 INFO L87 Difference]: Start difference. First operand 37 states and 62 transitions. Second operand 3 states. [2020-11-30 00:22:58,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,364 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2020-11-30 00:22:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 00:22:58,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,366 INFO L225 Difference]: With dead ends: 60 [2020-11-30 00:22:58,366 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 00:22:58,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 00:22:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-11-30 00:22:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-30 00:22:58,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 64 transitions. [2020-11-30 00:22:58,374 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 64 transitions. Word has length 13 [2020-11-30 00:22:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,374 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 64 transitions. [2020-11-30 00:22:58,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2020-11-30 00:22:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:22:58,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:22:58,376 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash -40921973, now seen corresponding path program 1 times [2020-11-30 00:22:58,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184183895] [2020-11-30 00:22:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,419 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 00:22:58,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184183895] [2020-11-30 00:22:58,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624277906] [2020-11-30 00:22:58,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,422 INFO L87 Difference]: Start difference. First operand 40 states and 64 transitions. Second operand 3 states. [2020-11-30 00:22:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,446 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2020-11-30 00:22:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 00:22:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,448 INFO L225 Difference]: With dead ends: 73 [2020-11-30 00:22:58,449 INFO L226 Difference]: Without dead ends: 71 [2020-11-30 00:22:58,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-30 00:22:58,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 53. [2020-11-30 00:22:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 00:22:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 85 transitions. [2020-11-30 00:22:58,467 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 85 transitions. Word has length 13 [2020-11-30 00:22:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,468 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 85 transitions. [2020-11-30 00:22:58,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2020-11-30 00:22:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:22:58,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:22:58,471 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,472 INFO L82 PathProgramCache]: Analyzing trace with hash -850268599, now seen corresponding path program 1 times [2020-11-30 00:22:58,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723438225] [2020-11-30 00:22:58,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,545 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 00:22:58,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723438225] [2020-11-30 00:22:58,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293578773] [2020-11-30 00:22:58,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,548 INFO L87 Difference]: Start difference. First operand 53 states and 85 transitions. Second operand 3 states. [2020-11-30 00:22:58,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,587 INFO L93 Difference]: Finished difference Result 121 states and 195 transitions. [2020-11-30 00:22:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 00:22:58,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,589 INFO L225 Difference]: With dead ends: 121 [2020-11-30 00:22:58,589 INFO L226 Difference]: Without dead ends: 73 [2020-11-30 00:22:58,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-30 00:22:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-11-30 00:22:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-30 00:22:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions. [2020-11-30 00:22:58,600 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 13 [2020-11-30 00:22:58,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,601 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 111 transitions. [2020-11-30 00:22:58,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2020-11-30 00:22:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:22:58,602 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:22:58,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1268365854, now seen corresponding path program 1 times [2020-11-30 00:22:58,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845052260] [2020-11-30 00:22:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,634 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 00:22:58,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845052260] [2020-11-30 00:22:58,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286127622] [2020-11-30 00:22:58,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,637 INFO L87 Difference]: Start difference. First operand 71 states and 111 transitions. Second operand 3 states. [2020-11-30 00:22:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,668 INFO L93 Difference]: Finished difference Result 108 states and 166 transitions. [2020-11-30 00:22:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-30 00:22:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,670 INFO L225 Difference]: With dead ends: 108 [2020-11-30 00:22:58,670 INFO L226 Difference]: Without dead ends: 75 [2020-11-30 00:22:58,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-30 00:22:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2020-11-30 00:22:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-30 00:22:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2020-11-30 00:22:58,697 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 14 [2020-11-30 00:22:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,699 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2020-11-30 00:22:58,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2020-11-30 00:22:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:22:58,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:22:58,704 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,706 INFO L82 PathProgramCache]: Analyzing trace with hash -588307484, now seen corresponding path program 1 times [2020-11-30 00:22:58,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276761854] [2020-11-30 00:22:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,762 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 00:22:58,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276761854] [2020-11-30 00:22:58,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80937414] [2020-11-30 00:22:58,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,764 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand 3 states. [2020-11-30 00:22:58,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,799 INFO L93 Difference]: Finished difference Result 201 states and 305 transitions. [2020-11-30 00:22:58,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-30 00:22:58,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,802 INFO L225 Difference]: With dead ends: 201 [2020-11-30 00:22:58,802 INFO L226 Difference]: Without dead ends: 135 [2020-11-30 00:22:58,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-30 00:22:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-30 00:22:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-30 00:22:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 195 transitions. [2020-11-30 00:22:58,826 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 195 transitions. Word has length 14 [2020-11-30 00:22:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,827 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 195 transitions. [2020-11-30 00:22:58,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 195 transitions. [2020-11-30 00:22:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:22:58,828 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:22:58,829 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,830 INFO L82 PathProgramCache]: Analyzing trace with hash 221039142, now seen corresponding path program 1 times [2020-11-30 00:22:58,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622597332] [2020-11-30 00:22:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,892 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 00:22:58,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622597332] [2020-11-30 00:22:58,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990818771] [2020-11-30 00:22:58,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,894 INFO L87 Difference]: Start difference. First operand 133 states and 195 transitions. Second operand 3 states. [2020-11-30 00:22:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:58,911 INFO L93 Difference]: Finished difference Result 161 states and 237 transitions. [2020-11-30 00:22:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:58,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-30 00:22:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:58,914 INFO L225 Difference]: With dead ends: 161 [2020-11-30 00:22:58,914 INFO L226 Difference]: Without dead ends: 159 [2020-11-30 00:22:58,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-30 00:22:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2020-11-30 00:22:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-30 00:22:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-11-30 00:22:58,929 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 14 [2020-11-30 00:22:58,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:58,929 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-11-30 00:22:58,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-11-30 00:22:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:22:58,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:58,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:58,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:22:58,932 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:58,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:58,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1057447170, now seen corresponding path program 1 times [2020-11-30 00:22:58,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:58,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302292559] [2020-11-30 00:22:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,962 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 00:22:58,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302292559] [2020-11-30 00:22:58,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:58,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:58,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599138934] [2020-11-30 00:22:58,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:58,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:58,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:58,965 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 3 states. [2020-11-30 00:22:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:59,023 INFO L93 Difference]: Finished difference Result 229 states and 329 transitions. [2020-11-30 00:22:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:59,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-30 00:22:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:59,026 INFO L225 Difference]: With dead ends: 229 [2020-11-30 00:22:59,026 INFO L226 Difference]: Without dead ends: 227 [2020-11-30 00:22:59,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-11-30 00:22:59,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2020-11-30 00:22:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-30 00:22:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 271 transitions. [2020-11-30 00:22:59,047 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 271 transitions. Word has length 15 [2020-11-30 00:22:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:59,048 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 271 transitions. [2020-11-30 00:22:59,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 271 transitions. [2020-11-30 00:22:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:22:59,050 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:59,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:59,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:22:59,060 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:59,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1866793796, now seen corresponding path program 1 times [2020-11-30 00:22:59,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:59,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276352534] [2020-11-30 00:22:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:59,125 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 00:22:59,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276352534] [2020-11-30 00:22:59,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:59,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:59,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119826375] [2020-11-30 00:22:59,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:59,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:59,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:59,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,128 INFO L87 Difference]: Start difference. First operand 193 states and 271 transitions. Second operand 3 states. [2020-11-30 00:22:59,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:59,164 INFO L93 Difference]: Finished difference Result 437 states and 609 transitions. [2020-11-30 00:22:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:59,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-30 00:22:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:59,172 INFO L225 Difference]: With dead ends: 437 [2020-11-30 00:22:59,172 INFO L226 Difference]: Without dead ends: 251 [2020-11-30 00:22:59,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-30 00:22:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2020-11-30 00:22:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-30 00:22:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 331 transitions. [2020-11-30 00:22:59,201 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 331 transitions. Word has length 15 [2020-11-30 00:22:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:59,201 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 331 transitions. [2020-11-30 00:22:59,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 331 transitions. [2020-11-30 00:22:59,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:22:59,204 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:59,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:59,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:22:59,205 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:59,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1579092089, now seen corresponding path program 1 times [2020-11-30 00:22:59,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:59,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121928219] [2020-11-30 00:22:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:59,234 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 00:22:59,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121928219] [2020-11-30 00:22:59,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:59,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:59,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687611677] [2020-11-30 00:22:59,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:59,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:59,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:59,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,237 INFO L87 Difference]: Start difference. First operand 249 states and 331 transitions. Second operand 3 states. [2020-11-30 00:22:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:59,303 INFO L93 Difference]: Finished difference Result 381 states and 505 transitions. [2020-11-30 00:22:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:59,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-30 00:22:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:59,306 INFO L225 Difference]: With dead ends: 381 [2020-11-30 00:22:59,306 INFO L226 Difference]: Without dead ends: 263 [2020-11-30 00:22:59,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-30 00:22:59,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2020-11-30 00:22:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-30 00:22:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 339 transitions. [2020-11-30 00:22:59,341 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 339 transitions. Word has length 16 [2020-11-30 00:22:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:59,341 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 339 transitions. [2020-11-30 00:22:59,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 339 transitions. [2020-11-30 00:22:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:22:59,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:59,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:59,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:22:59,349 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash -2035816837, now seen corresponding path program 1 times [2020-11-30 00:22:59,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:59,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986152212] [2020-11-30 00:22:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:59,400 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 00:22:59,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986152212] [2020-11-30 00:22:59,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:59,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:59,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659637630] [2020-11-30 00:22:59,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:59,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:59,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:59,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,402 INFO L87 Difference]: Start difference. First operand 261 states and 339 transitions. Second operand 3 states. [2020-11-30 00:22:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:59,439 INFO L93 Difference]: Finished difference Result 423 states and 540 transitions. [2020-11-30 00:22:59,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:59,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-30 00:22:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:59,443 INFO L225 Difference]: With dead ends: 423 [2020-11-30 00:22:59,443 INFO L226 Difference]: Without dead ends: 421 [2020-11-30 00:22:59,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-11-30 00:22:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 389. [2020-11-30 00:22:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-11-30 00:22:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 491 transitions. [2020-11-30 00:22:59,468 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 491 transitions. Word has length 16 [2020-11-30 00:22:59,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:59,468 INFO L481 AbstractCegarLoop]: Abstraction has 389 states and 491 transitions. [2020-11-30 00:22:59,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:59,469 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 491 transitions. [2020-11-30 00:22:59,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:22:59,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:59,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:59,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:22:59,470 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:59,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1449803833, now seen corresponding path program 1 times [2020-11-30 00:22:59,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:59,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027036286] [2020-11-30 00:22:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:59,518 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 00:22:59,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027036286] [2020-11-30 00:22:59,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:59,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:59,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072124522] [2020-11-30 00:22:59,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:59,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:59,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:59,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,520 INFO L87 Difference]: Start difference. First operand 389 states and 491 transitions. Second operand 3 states. [2020-11-30 00:22:59,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:59,553 INFO L93 Difference]: Finished difference Result 853 states and 1051 transitions. [2020-11-30 00:22:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:59,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-30 00:22:59,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:59,554 INFO L225 Difference]: With dead ends: 853 [2020-11-30 00:22:59,554 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:22:59,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:22:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:22:59,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:22:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:22:59,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-30 00:22:59,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:59,556 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:22:59,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:22:59,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:22:59,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:22:59,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:22:59,583 INFO L277 CegarLoopResult]: At program point L85-1(lines 26 90) the Hoare annotation is: true [2020-11-30 00:22:59,583 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:22:59,583 INFO L277 CegarLoopResult]: At program point L94(lines 6 95) the Hoare annotation is: true [2020-11-30 00:22:59,583 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:22:59,583 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:22:59,583 INFO L274 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L270 CegarLoopResult]: At program point L86-1(lines 7 95) the Hoare annotation is: false [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L70-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L55-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L80-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L47-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-30 00:22:59,584 INFO L274 CegarLoopResult]: For program point L65-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L277 CegarLoopResult]: At program point L91(lines 7 95) the Hoare annotation is: true [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L75-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L59-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L51-1(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,585 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-30 00:22:59,586 INFO L274 CegarLoopResult]: For program point L43(lines 43 45) no Hoare annotation was computed. [2020-11-30 00:22:59,586 INFO L274 CegarLoopResult]: For program point L43-2(lines 26 90) no Hoare annotation was computed. [2020-11-30 00:22:59,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:22:59 BoogieIcfgContainer [2020-11-30 00:22:59,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:22:59,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:22:59,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:22:59,598 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:22:59,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:57" (3/4) ... [2020-11-30 00:22:59,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:22:59,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:22:59,614 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:22:59,614 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:22:59,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:22:59,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fee295a7-3f37-46e9-9202-56e7e1ac6956/bin/uautomizer/witness.graphml [2020-11-30 00:22:59,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:22:59,693 INFO L168 Benchmark]: Toolchain (without parser) took 3031.95 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 57.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,694 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory was 46.0 MB in the beginning and 45.9 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:59,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.75 ms. Allocated memory is still 88.1 MB. Free memory was 56.0 MB in the beginning and 65.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.6 MB in the beginning and 64.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:59,695 INFO L168 Benchmark]: Boogie Preprocessor took 27.51 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 63.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,696 INFO L168 Benchmark]: RCFGBuilder took 466.26 ms. Allocated memory is still 88.1 MB. Free memory was 62.8 MB in the beginning and 48.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,696 INFO L168 Benchmark]: TraceAbstraction took 2053.54 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.9 MB in the beginning and 61.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,697 INFO L168 Benchmark]: Witness Printer took 93.47 ms. Allocated memory is still 107.0 MB. Free memory was 60.5 MB in the beginning and 57.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:59,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory was 46.0 MB in the beginning and 45.9 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.75 ms. Allocated memory is still 88.1 MB. Free memory was 56.0 MB in the beginning and 65.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.6 MB in the beginning and 64.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.51 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 63.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 466.26 ms. Allocated memory is still 88.1 MB. Free memory was 62.8 MB in the beginning and 48.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2053.54 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.9 MB in the beginning and 61.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 93.47 ms. Allocated memory is still 107.0 MB. Free memory was 60.5 MB in the beginning and 57.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 574 SDtfs, 264 SDslu, 358 SDs, 0 SdLazy, 69 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 136 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 41 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 4278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...