./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC --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 37f367aa306d4413b86571ec4edcd77d82ad4344 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:27:10,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:10,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:10,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:10,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:10,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:10,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:10,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:10,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:10,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:10,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:10,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:10,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:10,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:10,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:10,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:10,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:10,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:10,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:10,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:10,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:10,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:10,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:10,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:10,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:10,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:10,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:10,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:10,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:10,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:10,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:10,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:10,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:10,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:10,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:10,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:10,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:10,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:10,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:10,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:10,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:10,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:27:10,286 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:10,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:10,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:10,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:10,288 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:10,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:10,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:10,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:10,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:10,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:10,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:10,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:10,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:10,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:10,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:10,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:10,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:10,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:10,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:10,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:10,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:10,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:10,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:10,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:10,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:10,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:27:10,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:10,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:10,294 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_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f367aa306d4413b86571ec4edcd77d82ad4344 [2021-10-11 00:27:10,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:10,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:10,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:10,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:10,566 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:10,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i [2021-10-11 00:27:10,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/data/29c20b63d/edf3e017b9694e0dbba851cbe062dcbd/FLAG88d928b58 [2021-10-11 00:27:11,289 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:11,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i [2021-10-11 00:27:11,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/data/29c20b63d/edf3e017b9694e0dbba851cbe062dcbd/FLAG88d928b58 [2021-10-11 00:27:11,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/data/29c20b63d/edf3e017b9694e0dbba851cbe062dcbd [2021-10-11 00:27:11,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:11,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:11,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:11,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:11,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:11,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:11" (1/1) ... [2021-10-11 00:27:11,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a2836e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11, skipping insertion in model container [2021-10-11 00:27:11,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:11" (1/1) ... [2021-10-11 00:27:11,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:11,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:11,979 WARN L226 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_ddfe267a-7221-44df-9e50-0792733067a9/sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i[949,962] [2021-10-11 00:27:12,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:12,178 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:12,191 WARN L226 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_ddfe267a-7221-44df-9e50-0792733067a9/sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i[949,962] [2021-10-11 00:27:12,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:12,307 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:12,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12 WrapperNode [2021-10-11 00:27:12,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:12,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:12,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:12,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:12,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:12,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:12,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:12,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:12,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... [2021-10-11 00:27:12,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:12,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:12,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:12,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:12,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:27:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 00:27:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 00:27:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 00:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 00:27:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 00:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 00:27:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 00:27:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:27:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 00:27:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:12,470 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 00:27:12,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:12,785 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 00:27:12,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:12 BoogieIcfgContainer [2021-10-11 00:27:12,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:12,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:27:12,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:27:12,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:27:12,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:11" (1/3) ... [2021-10-11 00:27:12,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42490e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:12, skipping insertion in model container [2021-10-11 00:27:12,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:12" (2/3) ... [2021-10-11 00:27:12,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42490e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:12, skipping insertion in model container [2021-10-11 00:27:12,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:12" (3/3) ... [2021-10-11 00:27:12,806 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-10-11 00:27:12,826 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 00:27:12,827 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:27:12,830 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:27:12,831 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 00:27:12,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,921 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,921 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,951 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,958 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:27:12,970 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 00:27:12,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 00:27:13,005 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:27:13,006 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:27:13,006 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:27:13,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:13,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:13,006 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:27:13,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:13,007 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:27:13,019 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 00:27:13,021 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2021-10-11 00:27:13,025 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2021-10-11 00:27:13,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-10-11 00:27:13,072 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-10-11 00:27:13,072 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 00:27:13,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-10-11 00:27:13,079 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-10-11 00:27:15,617 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-10-11 00:27:15,908 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-10-11 00:27:16,016 INFO L131 LiptonReduction]: Checked pairs total: 2466 [2021-10-11 00:27:16,016 INFO L133 LiptonReduction]: Total number of compositions: 61 [2021-10-11 00:27:16,023 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-10-11 00:27:16,052 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-10-11 00:27:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-10-11 00:27:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:27:16,061 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:16,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:16,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:16,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:16,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1644080523, now seen corresponding path program 1 times [2021-10-11 00:27:16,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:16,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384572861] [2021-10-11 00:27:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:16,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384572861] [2021-10-11 00:27:16,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:16,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:16,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298250074] [2021-10-11 00:27:16,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:27:16,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:16,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:27:16,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:27:16,283 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-10-11 00:27:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:16,312 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-10-11 00:27:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:27:16,314 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 00:27:16,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:16,330 INFO L225 Difference]: With dead ends: 362 [2021-10-11 00:27:16,331 INFO L226 Difference]: Without dead ends: 298 [2021-10-11 00:27:16,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:27:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-11 00:27:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-10-11 00:27:16,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-10-11 00:27:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-10-11 00:27:16,403 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-10-11 00:27:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:16,404 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-10-11 00:27:16,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:27:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-10-11 00:27:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:27:16,406 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:16,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:16,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:27:16,407 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:16,408 INFO L82 PathProgramCache]: Analyzing trace with hash 573104580, now seen corresponding path program 1 times [2021-10-11 00:27:16,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:16,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029312190] [2021-10-11 00:27:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:16,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029312190] [2021-10-11 00:27:16,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:16,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:16,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621533542] [2021-10-11 00:27:16,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:27:16,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:16,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:27:16,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:27:16,550 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-10-11 00:27:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:16,601 INFO L93 Difference]: Finished difference Result 541 states and 1484 transitions. [2021-10-11 00:27:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:27:16,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 00:27:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:16,607 INFO L225 Difference]: With dead ends: 541 [2021-10-11 00:27:16,610 INFO L226 Difference]: Without dead ends: 410 [2021-10-11 00:27:16,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-11 00:27:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 340. [2021-10-11 00:27:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2021-10-11 00:27:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 937 transitions. [2021-10-11 00:27:16,661 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 937 transitions. Word has length 9 [2021-10-11 00:27:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:16,662 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 937 transitions. [2021-10-11 00:27:16,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:27:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 937 transitions. [2021-10-11 00:27:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:27:16,664 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:16,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:16,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:27:16,665 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:16,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1603605898, now seen corresponding path program 1 times [2021-10-11 00:27:16,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:16,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953847154] [2021-10-11 00:27:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:16,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:16,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953847154] [2021-10-11 00:27:16,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:16,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:16,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329842745] [2021-10-11 00:27:16,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:16,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:16,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:16,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:16,830 INFO L87 Difference]: Start difference. First operand 340 states and 937 transitions. Second operand 5 states. [2021-10-11 00:27:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:16,897 INFO L93 Difference]: Finished difference Result 455 states and 1174 transitions. [2021-10-11 00:27:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:16,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 00:27:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:16,901 INFO L225 Difference]: With dead ends: 455 [2021-10-11 00:27:16,902 INFO L226 Difference]: Without dead ends: 366 [2021-10-11 00:27:16,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-11 00:27:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 294. [2021-10-11 00:27:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-10-11 00:27:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 797 transitions. [2021-10-11 00:27:16,932 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 797 transitions. Word has length 10 [2021-10-11 00:27:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:16,933 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 797 transitions. [2021-10-11 00:27:16,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 797 transitions. [2021-10-11 00:27:16,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:27:16,941 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:16,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:16,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:27:16,942 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:16,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:16,944 INFO L82 PathProgramCache]: Analyzing trace with hash 996933044, now seen corresponding path program 1 times [2021-10-11 00:27:16,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:16,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270739564] [2021-10-11 00:27:16,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270739564] [2021-10-11 00:27:17,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:17,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807043838] [2021-10-11 00:27:17,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:17,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:17,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:17,055 INFO L87 Difference]: Start difference. First operand 294 states and 797 transitions. Second operand 5 states. [2021-10-11 00:27:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,107 INFO L93 Difference]: Finished difference Result 410 states and 1048 transitions. [2021-10-11 00:27:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:17,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 00:27:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,112 INFO L225 Difference]: With dead ends: 410 [2021-10-11 00:27:17,113 INFO L226 Difference]: Without dead ends: 344 [2021-10-11 00:27:17,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-11 00:27:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 278. [2021-10-11 00:27:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2021-10-11 00:27:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 742 transitions. [2021-10-11 00:27:17,125 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 742 transitions. Word has length 11 [2021-10-11 00:27:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,126 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 742 transitions. [2021-10-11 00:27:17,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 742 transitions. [2021-10-11 00:27:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:27:17,128 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:27:17,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash 996952264, now seen corresponding path program 1 times [2021-10-11 00:27:17,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414261722] [2021-10-11 00:27:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414261722] [2021-10-11 00:27:17,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:17,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553990115] [2021-10-11 00:27:17,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:17,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:17,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:17,196 INFO L87 Difference]: Start difference. First operand 278 states and 742 transitions. Second operand 5 states. [2021-10-11 00:27:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,251 INFO L93 Difference]: Finished difference Result 372 states and 946 transitions. [2021-10-11 00:27:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:17,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 00:27:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,255 INFO L225 Difference]: With dead ends: 372 [2021-10-11 00:27:17,255 INFO L226 Difference]: Without dead ends: 318 [2021-10-11 00:27:17,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-11 00:27:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 250. [2021-10-11 00:27:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-10-11 00:27:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 657 transitions. [2021-10-11 00:27:17,267 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 657 transitions. Word has length 11 [2021-10-11 00:27:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,267 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 657 transitions. [2021-10-11 00:27:17,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 657 transitions. [2021-10-11 00:27:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:27:17,269 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:27:17,269 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,270 INFO L82 PathProgramCache]: Analyzing trace with hash -828726514, now seen corresponding path program 1 times [2021-10-11 00:27:17,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251216575] [2021-10-11 00:27:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251216575] [2021-10-11 00:27:17,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:17,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831370753] [2021-10-11 00:27:17,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:17,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:17,330 INFO L87 Difference]: Start difference. First operand 250 states and 657 transitions. Second operand 5 states. [2021-10-11 00:27:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,388 INFO L93 Difference]: Finished difference Result 335 states and 834 transitions. [2021-10-11 00:27:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:17,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 00:27:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,391 INFO L225 Difference]: With dead ends: 335 [2021-10-11 00:27:17,391 INFO L226 Difference]: Without dead ends: 292 [2021-10-11 00:27:17,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-11 00:27:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 238. [2021-10-11 00:27:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-10-11 00:27:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 616 transitions. [2021-10-11 00:27:17,403 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 616 transitions. Word has length 12 [2021-10-11 00:27:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,403 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 616 transitions. [2021-10-11 00:27:17,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 616 transitions. [2021-10-11 00:27:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:27:17,405 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:27:17,405 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,406 INFO L82 PathProgramCache]: Analyzing trace with hash 796278870, now seen corresponding path program 1 times [2021-10-11 00:27:17,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709538516] [2021-10-11 00:27:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709538516] [2021-10-11 00:27:17,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:17,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142384911] [2021-10-11 00:27:17,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:17,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:17,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:17,507 INFO L87 Difference]: Start difference. First operand 238 states and 616 transitions. Second operand 5 states. [2021-10-11 00:27:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,552 INFO L93 Difference]: Finished difference Result 392 states and 969 transitions. [2021-10-11 00:27:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:17,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:27:17,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,555 INFO L225 Difference]: With dead ends: 392 [2021-10-11 00:27:17,556 INFO L226 Difference]: Without dead ends: 304 [2021-10-11 00:27:17,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:17,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-11 00:27:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 222. [2021-10-11 00:27:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2021-10-11 00:27:17,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 550 transitions. [2021-10-11 00:27:17,566 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 550 transitions. Word has length 13 [2021-10-11 00:27:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,566 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 550 transitions. [2021-10-11 00:27:17,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 550 transitions. [2021-10-11 00:27:17,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:27:17,568 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:27:17,568 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash 78666770, now seen corresponding path program 1 times [2021-10-11 00:27:17,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640839230] [2021-10-11 00:27:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640839230] [2021-10-11 00:27:17,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:17,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164259339] [2021-10-11 00:27:17,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:17,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:17,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:17,628 INFO L87 Difference]: Start difference. First operand 222 states and 550 transitions. Second operand 6 states. [2021-10-11 00:27:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,676 INFO L93 Difference]: Finished difference Result 316 states and 747 transitions. [2021-10-11 00:27:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:17,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 00:27:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,688 INFO L225 Difference]: With dead ends: 316 [2021-10-11 00:27:17,688 INFO L226 Difference]: Without dead ends: 172 [2021-10-11 00:27:17,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:27:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-11 00:27:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 140. [2021-10-11 00:27:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-10-11 00:27:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 328 transitions. [2021-10-11 00:27:17,695 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 328 transitions. Word has length 13 [2021-10-11 00:27:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,695 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 328 transitions. [2021-10-11 00:27:17,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 328 transitions. [2021-10-11 00:27:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:27:17,696 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:27:17,696 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,697 INFO L82 PathProgramCache]: Analyzing trace with hash 274334134, now seen corresponding path program 2 times [2021-10-11 00:27:17,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608911822] [2021-10-11 00:27:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608911822] [2021-10-11 00:27:17,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:17,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859970990] [2021-10-11 00:27:17,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:17,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:17,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:17,809 INFO L87 Difference]: Start difference. First operand 140 states and 328 transitions. Second operand 6 states. [2021-10-11 00:27:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,862 INFO L93 Difference]: Finished difference Result 192 states and 432 transitions. [2021-10-11 00:27:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:17,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 00:27:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,863 INFO L225 Difference]: With dead ends: 192 [2021-10-11 00:27:17,863 INFO L226 Difference]: Without dead ends: 108 [2021-10-11 00:27:17,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:27:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-11 00:27:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 92. [2021-10-11 00:27:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 00:27:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 204 transitions. [2021-10-11 00:27:17,868 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 204 transitions. Word has length 13 [2021-10-11 00:27:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,869 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 204 transitions. [2021-10-11 00:27:17,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 204 transitions. [2021-10-11 00:27:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:27:17,869 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:27:17,870 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,870 INFO L82 PathProgramCache]: Analyzing trace with hash 383190448, now seen corresponding path program 1 times [2021-10-11 00:27:17,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701159098] [2021-10-11 00:27:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:17,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701159098] [2021-10-11 00:27:17,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:17,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:17,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548209348] [2021-10-11 00:27:17,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:17,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:17,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:17,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:17,944 INFO L87 Difference]: Start difference. First operand 92 states and 204 transitions. Second operand 5 states. [2021-10-11 00:27:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:17,989 INFO L93 Difference]: Finished difference Result 106 states and 217 transitions. [2021-10-11 00:27:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:17,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:27:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:17,991 INFO L225 Difference]: With dead ends: 106 [2021-10-11 00:27:17,991 INFO L226 Difference]: Without dead ends: 80 [2021-10-11 00:27:17,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-11 00:27:17,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2021-10-11 00:27:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 00:27:17,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 162 transitions. [2021-10-11 00:27:17,995 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 162 transitions. Word has length 13 [2021-10-11 00:27:17,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:17,996 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 162 transitions. [2021-10-11 00:27:17,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 162 transitions. [2021-10-11 00:27:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:27:17,996 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:17,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:17,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:27:17,997 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:17,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1006670732, now seen corresponding path program 1 times [2021-10-11 00:27:17,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:17,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680020856] [2021-10-11 00:27:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:18,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680020856] [2021-10-11 00:27:18,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:18,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508667591] [2021-10-11 00:27:18,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:27:18,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:27:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:27:18,054 INFO L87 Difference]: Start difference. First operand 76 states and 162 transitions. Second operand 4 states. [2021-10-11 00:27:18,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,074 INFO L93 Difference]: Finished difference Result 80 states and 155 transitions. [2021-10-11 00:27:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:27:18,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 00:27:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,075 INFO L225 Difference]: With dead ends: 80 [2021-10-11 00:27:18,075 INFO L226 Difference]: Without dead ends: 62 [2021-10-11 00:27:18,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-11 00:27:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-11 00:27:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2021-10-11 00:27:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 117 transitions. [2021-10-11 00:27:18,078 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 117 transitions. Word has length 14 [2021-10-11 00:27:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:18,079 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 117 transitions. [2021-10-11 00:27:18,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:27:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 117 transitions. [2021-10-11 00:27:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:27:18,081 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:18,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:27:18,082 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:18,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:18,082 INFO L82 PathProgramCache]: Analyzing trace with hash 48994457, now seen corresponding path program 1 times [2021-10-11 00:27:18,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:18,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315728212] [2021-10-11 00:27:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:18,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315728212] [2021-10-11 00:27:18,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:18,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981080349] [2021-10-11 00:27:18,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:18,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:18,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:18,136 INFO L87 Difference]: Start difference. First operand 62 states and 117 transitions. Second operand 5 states. [2021-10-11 00:27:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,172 INFO L93 Difference]: Finished difference Result 52 states and 90 transitions. [2021-10-11 00:27:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:18,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 00:27:18,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,173 INFO L225 Difference]: With dead ends: 52 [2021-10-11 00:27:18,173 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 00:27:18,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 00:27:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-11 00:27:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-10-11 00:27:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2021-10-11 00:27:18,176 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 15 [2021-10-11 00:27:18,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:18,176 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2021-10-11 00:27:18,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:18,176 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2021-10-11 00:27:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:27:18,177 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:18,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:27:18,177 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1602840682, now seen corresponding path program 1 times [2021-10-11 00:27:18,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:18,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890318880] [2021-10-11 00:27:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:18,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890318880] [2021-10-11 00:27:18,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:27:18,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331455739] [2021-10-11 00:27:18,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:18,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:18,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:18,239 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 6 states. [2021-10-11 00:27:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,256 INFO L93 Difference]: Finished difference Result 36 states and 61 transitions. [2021-10-11 00:27:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:18,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 00:27:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,256 INFO L225 Difference]: With dead ends: 36 [2021-10-11 00:27:18,257 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:27:18,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:27:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:27:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:27:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:27:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:27:18,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-11 00:27:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:18,262 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:18,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:27:18,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:27:18,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:27:18,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:18 BasicIcfg [2021-10-11 00:27:18,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:27:18,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:18,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:18,267 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:18,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:12" (3/4) ... [2021-10-11 00:27:18,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:27:18,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 00:27:18,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 00:27:18,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 00:27:18,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 00:27:18,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:27:18,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:27:18,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:27:18,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddfe267a-7221-44df-9e50-0792733067a9/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:27:18,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:18,333 INFO L168 Benchmark]: Toolchain (without parser) took 6684.52 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 77.5 MB in the beginning and 79.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 61.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,333 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:18,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.58 ms. Allocated memory is still 111.1 MB. Free memory was 77.3 MB in the beginning and 66.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.44 ms. Allocated memory is still 111.1 MB. Free memory was 66.1 MB in the beginning and 64.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,334 INFO L168 Benchmark]: Boogie Preprocessor took 28.56 ms. Allocated memory is still 111.1 MB. Free memory was 64.4 MB in the beginning and 63.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,335 INFO L168 Benchmark]: RCFGBuilder took 404.19 ms. Allocated memory is still 111.1 MB. Free memory was 63.0 MB in the beginning and 41.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,335 INFO L168 Benchmark]: TraceAbstraction took 5477.16 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 40.9 MB in the beginning and 83.0 MB in the end (delta: -42.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,336 INFO L168 Benchmark]: Witness Printer took 65.14 ms. Allocated memory is still 176.2 MB. Free memory was 83.0 MB in the beginning and 79.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:18,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.58 ms. Allocated memory is still 111.1 MB. Free memory was 77.3 MB in the beginning and 66.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.44 ms. Allocated memory is still 111.1 MB. Free memory was 66.1 MB in the beginning and 64.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.56 ms. Allocated memory is still 111.1 MB. Free memory was 64.4 MB in the beginning and 63.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 404.19 ms. Allocated memory is still 111.1 MB. Free memory was 63.0 MB in the beginning and 41.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5477.16 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 40.9 MB in the beginning and 83.0 MB in the end (delta: -42.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Witness Printer took 65.14 ms. Allocated memory is still 176.2 MB. Free memory was 83.0 MB in the beginning and 79.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 781 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 57 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.9s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2466 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 310 SDtfs, 321 SDslu, 515 SDs, 0 SdLazy, 220 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 464 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 7243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...