./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0 --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 c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:16:31,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:16:31,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:16:31,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:16:31,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:16:31,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:16:31,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:16:31,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:16:31,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:16:31,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:16:31,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:16:31,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:16:31,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:16:31,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:16:31,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:16:31,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:16:31,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:16:31,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:16:31,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:16:31,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:16:31,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:16:31,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:16:31,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:16:31,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:16:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:16:31,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:16:31,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:16:31,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:16:31,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:16:31,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:16:31,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:16:31,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:16:31,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:16:31,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:16:31,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:16:31,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:16:31,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:16:31,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:16:31,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:16:31,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:16:31,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:16:31,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:16:31,266 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:16:31,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:16:31,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:16:31,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:16:31,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:16:31,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:16:31,269 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:16:31,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:16:31,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:16:31,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:16:31,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:16:31,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:16:31,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:16:31,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:16:31,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:16:31,272 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:16:31,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:16:31,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:16:31,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:16:31,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:16:31,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:16:31,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:16:31,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:16:31,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:16:31,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:16:31,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:16:31,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:16:31,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:16:31,275 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:16:31,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:16:31,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:16:31,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:16:31,276 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_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 [2021-11-22 16:16:31,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:16:31,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:16:31,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:16:31,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:16:31,582 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:16:31,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/psyco/psyco_security.c [2021-11-22 16:16:31,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/data/ec73728a5/93f01d43cbd14c79b05d277ba3f0febf/FLAG5b85f1619 [2021-11-22 16:16:32,131 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:16:32,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/sv-benchmarks/c/psyco/psyco_security.c [2021-11-22 16:16:32,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/data/ec73728a5/93f01d43cbd14c79b05d277ba3f0febf/FLAG5b85f1619 [2021-11-22 16:16:32,488 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/data/ec73728a5/93f01d43cbd14c79b05d277ba3f0febf [2021-11-22 16:16:32,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:16:32,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:16:32,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:16:32,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:16:32,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:16:32,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ac9e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32, skipping insertion in model container [2021-11-22 16:16:32,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:16:32,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:16:32,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-11-22 16:16:32,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:16:32,764 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:16:32,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-11-22 16:16:32,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:16:32,828 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:16:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32 WrapperNode [2021-11-22 16:16:32,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:16:32,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:16:32,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:16:32,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:16:32,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,894 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 269 [2021-11-22 16:16:32,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:16:32,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:16:32,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:16:32,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:16:32,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:16:32,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:16:32,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:16:32,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:16:32,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (1/1) ... [2021-11-22 16:16:32,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:16:32,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:32,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:16:33,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:16:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:16:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:16:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:16:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:16:33,119 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:16:33,121 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:16:33,502 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:16:33,510 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:16:33,510 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-22 16:16:33,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:16:33 BoogieIcfgContainer [2021-11-22 16:16:33,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:16:33,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:16:33,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:16:33,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:16:33,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:16:32" (1/3) ... [2021-11-22 16:16:33,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cdbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:16:33, skipping insertion in model container [2021-11-22 16:16:33,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:32" (2/3) ... [2021-11-22 16:16:33,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cdbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:16:33, skipping insertion in model container [2021-11-22 16:16:33,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:16:33" (3/3) ... [2021-11-22 16:16:33,526 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2021-11-22 16:16:33,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:16:33,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:16:33,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:16:33,583 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:16:33,583 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:16:33,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 16:16:33,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:33,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:33,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:33,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash 352571364, now seen corresponding path program 1 times [2021-11-22 16:16:33,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:33,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199603995] [2021-11-22 16:16:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:33,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:33,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:33,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199603995] [2021-11-22 16:16:33,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199603995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:33,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:33,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:16:33,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592250106] [2021-11-22 16:16:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:33,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:16:33,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:33,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:16:33,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:16:33,844 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:33,871 INFO L93 Difference]: Finished difference Result 154 states and 292 transitions. [2021-11-22 16:16:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:16:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 16:16:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:33,883 INFO L225 Difference]: With dead ends: 154 [2021-11-22 16:16:33,884 INFO L226 Difference]: Without dead ends: 74 [2021-11-22 16:16:33,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:16:33,891 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:33,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-22 16:16:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-22 16:16:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 73 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2021-11-22 16:16:33,934 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2021-11-22 16:16:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:33,935 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2021-11-22 16:16:33,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:33,935 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2021-11-22 16:16:33,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 16:16:33,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:33,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:33,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:16:33,937 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:33,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1422697708, now seen corresponding path program 1 times [2021-11-22 16:16:33,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:33,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298384392] [2021-11-22 16:16:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:33,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:33,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:33,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298384392] [2021-11-22 16:16:33,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298384392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:33,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:33,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:33,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724405119] [2021-11-22 16:16:33,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:33,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:33,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:33,980 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:34,031 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2021-11-22 16:16:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:34,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-22 16:16:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:34,033 INFO L225 Difference]: With dead ends: 149 [2021-11-22 16:16:34,034 INFO L226 Difference]: Without dead ends: 77 [2021-11-22 16:16:34,034 INFO L932 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 [2021-11-22 16:16:34,036 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:34,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 190 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-22 16:16:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-11-22 16:16:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 76 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2021-11-22 16:16:34,048 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2021-11-22 16:16:34,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:34,048 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2021-11-22 16:16:34,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2021-11-22 16:16:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 16:16:34,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:34,050 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:34,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:16:34,051 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash 658032583, now seen corresponding path program 1 times [2021-11-22 16:16:34,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:34,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347299836] [2021-11-22 16:16:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:34,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:34,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:34,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347299836] [2021-11-22 16:16:34,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347299836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:34,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:34,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:34,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165164386] [2021-11-22 16:16:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:34,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:34,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:34,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:34,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:34,122 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:34,230 INFO L93 Difference]: Finished difference Result 157 states and 229 transitions. [2021-11-22 16:16:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-22 16:16:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:34,232 INFO L225 Difference]: With dead ends: 157 [2021-11-22 16:16:34,233 INFO L226 Difference]: Without dead ends: 83 [2021-11-22 16:16:34,233 INFO L932 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 [2021-11-22 16:16:34,235 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:34,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:16:34,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-22 16:16:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2021-11-22 16:16:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.45) internal successors, (116), 80 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2021-11-22 16:16:34,266 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 15 [2021-11-22 16:16:34,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:34,267 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2021-11-22 16:16:34,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,267 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2021-11-22 16:16:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:16:34,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:34,268 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:34,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:16:34,269 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:34,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2066489199, now seen corresponding path program 1 times [2021-11-22 16:16:34,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:34,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941220531] [2021-11-22 16:16:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:34,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:34,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:34,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941220531] [2021-11-22 16:16:34,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941220531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:34,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:34,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:34,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319288454] [2021-11-22 16:16:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:34,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:16:34,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:16:34,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:16:34,357 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:34,671 INFO L93 Difference]: Finished difference Result 254 states and 362 transitions. [2021-11-22 16:16:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:16:34,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 16:16:34,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:34,675 INFO L225 Difference]: With dead ends: 254 [2021-11-22 16:16:34,675 INFO L226 Difference]: Without dead ends: 164 [2021-11-22 16:16:34,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:16:34,678 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 93 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:34,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 348 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 16:16:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-22 16:16:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 129. [2021-11-22 16:16:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.515625) internal successors, (194), 128 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 194 transitions. [2021-11-22 16:16:34,720 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 194 transitions. Word has length 18 [2021-11-22 16:16:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:34,721 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 194 transitions. [2021-11-22 16:16:34,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 194 transitions. [2021-11-22 16:16:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 16:16:34,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:34,727 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:34,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:16:34,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:34,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1261026174, now seen corresponding path program 1 times [2021-11-22 16:16:34,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:34,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281730387] [2021-11-22 16:16:34,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:34,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:16:34,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:34,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281730387] [2021-11-22 16:16:34,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281730387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:34,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:34,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:34,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195943173] [2021-11-22 16:16:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:34,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:34,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:34,802 INFO L87 Difference]: Start difference. First operand 129 states and 194 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:34,854 INFO L93 Difference]: Finished difference Result 233 states and 348 transitions. [2021-11-22 16:16:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:34,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-22 16:16:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:34,857 INFO L225 Difference]: With dead ends: 233 [2021-11-22 16:16:34,857 INFO L226 Difference]: Without dead ends: 107 [2021-11-22 16:16:34,858 INFO L932 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 [2021-11-22 16:16:34,860 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 28 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:34,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 152 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-22 16:16:34,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-11-22 16:16:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 104 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2021-11-22 16:16:34,883 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 22 [2021-11-22 16:16:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:34,883 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2021-11-22 16:16:34,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2021-11-22 16:16:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 16:16:34,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:34,885 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:34,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:16:34,886 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1588216786, now seen corresponding path program 1 times [2021-11-22 16:16:34,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:34,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204676031] [2021-11-22 16:16:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:34,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:16:34,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:34,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204676031] [2021-11-22 16:16:34,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204676031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:34,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:34,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:34,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132265007] [2021-11-22 16:16:34,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:34,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:34,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:34,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:34,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:34,931 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:34,967 INFO L93 Difference]: Finished difference Result 189 states and 268 transitions. [2021-11-22 16:16:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:34,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-22 16:16:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:34,969 INFO L225 Difference]: With dead ends: 189 [2021-11-22 16:16:34,969 INFO L226 Difference]: Without dead ends: 87 [2021-11-22 16:16:34,970 INFO L932 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 [2021-11-22 16:16:34,972 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:34,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 124 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-22 16:16:34,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-11-22 16:16:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.4047619047619047) internal successors, (118), 84 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 118 transitions. [2021-11-22 16:16:34,984 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 118 transitions. Word has length 24 [2021-11-22 16:16:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:34,984 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 118 transitions. [2021-11-22 16:16:34,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 118 transitions. [2021-11-22 16:16:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 16:16:34,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:34,986 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:34,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:16:34,987 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1712893632, now seen corresponding path program 1 times [2021-11-22 16:16:34,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:34,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640626568] [2021-11-22 16:16:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:34,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:16:35,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640626568] [2021-11-22 16:16:35,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640626568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:35,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:35,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:35,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774632699] [2021-11-22 16:16:35,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:35,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:35,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:35,093 INFO L87 Difference]: Start difference. First operand 85 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:35,129 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2021-11-22 16:16:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 16:16:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:35,131 INFO L225 Difference]: With dead ends: 132 [2021-11-22 16:16:35,131 INFO L226 Difference]: Without dead ends: 66 [2021-11-22 16:16:35,132 INFO L932 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 [2021-11-22 16:16:35,134 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:35,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 114 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-22 16:16:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-22 16:16:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 65 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2021-11-22 16:16:35,142 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 26 [2021-11-22 16:16:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:35,143 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2021-11-22 16:16:35,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2021-11-22 16:16:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 16:16:35,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:35,145 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:35,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:16:35,145 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:16:35,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash -583473182, now seen corresponding path program 1 times [2021-11-22 16:16:35,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:35,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308498983] [2021-11-22 16:16:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:35,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:16:35,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:35,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308498983] [2021-11-22 16:16:35,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308498983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:35,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:35,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:35,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54361320] [2021-11-22 16:16:35,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:35,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:35,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:35,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:35,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:35,189 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:35,211 INFO L93 Difference]: Finished difference Result 107 states and 139 transitions. [2021-11-22 16:16:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:35,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-22 16:16:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:35,212 INFO L225 Difference]: With dead ends: 107 [2021-11-22 16:16:35,212 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:16:35,213 INFO L932 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 [2021-11-22 16:16:35,215 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:35,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:16:35,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:16:35,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:16:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:16:35,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-11-22 16:16:35,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:35,217 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:16:35,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:16:35,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:16:35,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:16:35,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:16:35,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:16:35,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:16:35,266 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 265) no Hoare annotation was computed. [2021-11-22 16:16:35,266 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 133) no Hoare annotation was computed. [2021-11-22 16:16:35,266 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 63) no Hoare annotation was computed. [2021-11-22 16:16:35,266 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 381) no Hoare annotation was computed. [2021-11-22 16:16:35,267 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 249) no Hoare annotation was computed. [2021-11-22 16:16:35,267 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 179) no Hoare annotation was computed. [2021-11-22 16:16:35,267 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 117) no Hoare annotation was computed. [2021-11-22 16:16:35,267 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2021-11-22 16:16:35,267 INFO L854 garLoopResultBuilder]: At program point L383(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~this_state~0#1| 3) (<= 4 |ULTIMATE.start_main_~q~0#1|)) (and (= 2 |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~this_state~0#1| 0)) (= |ULTIMATE.start_main_~q~0#1| 0) (and (= 3 |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~this_state~0#1| 2))) [2021-11-22 16:16:35,267 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 365) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 233) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 284) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 163) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 349) no Hoare annotation was computed. [2021-11-22 16:16:35,268 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 279) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 217) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 147) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 333) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 384) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L252(lines 252 263) no Hoare annotation was computed. [2021-11-22 16:16:35,269 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 201) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 131) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 379) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 317) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 247) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2021-11-22 16:16:35,270 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 363) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 301) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 231) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 90) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 347) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 215) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 74) no Hoare annotation was computed. [2021-11-22 16:16:35,271 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 331) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 199) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 315) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 174) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 299) no Hoare annotation was computed. [2021-11-22 16:16:35,272 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 158) no Hoare annotation was computed. [2021-11-22 16:16:35,273 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~this_state~0#1| 3) (<= 4 |ULTIMATE.start_main_~q~0#1|)) (and (= |ULTIMATE.start_main_~q~0#1| 0) (not (= |ULTIMATE.start_main_~this_state~0#1| 2)))) [2021-11-22 16:16:35,273 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2021-11-22 16:16:35,273 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2021-11-22 16:16:35,273 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 142) no Hoare annotation was computed. [2021-11-22 16:16:35,273 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:16:35,273 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 258) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 242) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 358) no Hoare annotation was computed. [2021-11-22 16:16:35,274 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 226) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L854 garLoopResultBuilder]: At program point L373(lines 15 392) the Hoare annotation is: false [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 342) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 210) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 326) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 194) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 310) no Hoare annotation was computed. [2021-11-22 16:16:35,275 INFO L858 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2021-11-22 16:16:35,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:16:35,276 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2021-11-22 16:16:35,276 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 45) no Hoare annotation was computed. [2021-11-22 16:16:35,276 INFO L861 garLoopResultBuilder]: At program point L15(lines 15 392) the Hoare annotation is: true [2021-11-22 16:16:35,276 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 43) no Hoare annotation was computed. [2021-11-22 16:16:35,276 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 97) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 100) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 65) no Hoare annotation was computed. [2021-11-22 16:16:35,277 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 181) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 165) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 95) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 281) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 149) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 184) no Hoare annotation was computed. [2021-11-22 16:16:35,278 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 79) no Hoare annotation was computed. [2021-11-22 16:16:35,282 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:35,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:16:35,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:16:35 BoogieIcfgContainer [2021-11-22 16:16:35,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:16:35,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:16:35,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:16:35,301 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:16:35,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:16:33" (3/4) ... [2021-11-22 16:16:35,305 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:16:35,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-22 16:16:35,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 16:16:35,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:16:35,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:16:35,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:16:35,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:16:35,350 INFO L158 Benchmark]: Toolchain (without parser) took 2857.99ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 64.4MB in the beginning and 56.3MB in the end (delta: 8.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,351 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:16:35,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.56ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 71.2MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.37ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,352 INFO L158 Benchmark]: Boogie Preprocessor took 31.49ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,352 INFO L158 Benchmark]: RCFGBuilder took 585.14ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 52.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,353 INFO L158 Benchmark]: TraceAbstraction took 1786.64ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.3MB in the beginning and 58.4MB in the end (delta: -6.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,353 INFO L158 Benchmark]: Witness Printer took 48.50ms. Allocated memory is still 119.5MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:16:35,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.56ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 71.2MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.37ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.49ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.14ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 52.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1786.64ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.3MB in the beginning and 58.4MB in the end (delta: -6.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 48.50ms. Allocated memory is still 119.5MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 507 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 819 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 41 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 43 HoareAnnotationTreeSize, 4 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 34/34 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((this_state == 3 && 4 <= q) || (2 == q && this_state == 0)) || q == 0) || (3 == q && this_state == 2) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (this_state == 3 && 4 <= q) || (q == 0 && !(this_state == 2)) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-22 16:16:35,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a3a563f-c9a4-4f83-83c5-cfce922795a2/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE