./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be --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 e27c7bb6749f8e5b84d1a08471e4a4b137cd36c4eaed216d5d03e50d41359cea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:13:35,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:13:35,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:13:35,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:13:35,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:13:35,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:13:35,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:13:35,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:13:35,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:13:35,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:13:35,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:13:35,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:13:35,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:13:35,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:13:35,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:13:35,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:13:35,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:13:35,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:13:35,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:13:35,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:13:35,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:13:35,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:13:35,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:13:35,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:13:35,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:13:35,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:13:35,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:13:35,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:13:35,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:13:35,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:13:35,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:13:35,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:13:35,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:13:35,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:13:35,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:13:35,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:13:35,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:13:35,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:13:35,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:13:35,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:13:35,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:13:35,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:13:35,425 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:13:35,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:13:35,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:13:35,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:13:35,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:13:35,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:13:35,434 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:13:35,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:13:35,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:13:35,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:13:35,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:13:35,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:13:35,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:13:35,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:13:35,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:13:35,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:13:35,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:13:35,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:13:35,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:13:35,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:13:35,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:13:35,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:13:35,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:13:35,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:13:35,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:13:35,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:13:35,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:13:35,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:13:35,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:13:35,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:13:35,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:13:35,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:13:35,443 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_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e27c7bb6749f8e5b84d1a08471e4a4b137cd36c4eaed216d5d03e50d41359cea [2021-10-21 20:13:35,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:13:35,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:13:35,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:13:35,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:13:35,812 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:13:35,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector/modulus-2.i [2021-10-21 20:13:35,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/data/2be517569/2e357d6cd93b422d93bcd5a2a5414309/FLAG91041cbb9 [2021-10-21 20:13:36,321 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:13:36,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/sv-benchmarks/c/bitvector/modulus-2.i [2021-10-21 20:13:36,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/data/2be517569/2e357d6cd93b422d93bcd5a2a5414309/FLAG91041cbb9 [2021-10-21 20:13:36,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/data/2be517569/2e357d6cd93b422d93bcd5a2a5414309 [2021-10-21 20:13:36,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:13:36,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:13:36,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:36,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:13:36,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:13:36,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:36,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768bf381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36, skipping insertion in model container [2021-10-21 20:13:36,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:36,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:13:36,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:13:36,926 WARN L228 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_99da3341-8983-48f9-a73b-14c3c72da0aa/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-21 20:13:36,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:36,949 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:13:36,962 WARN L228 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_99da3341-8983-48f9-a73b-14c3c72da0aa/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-21 20:13:36,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:36,981 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:13:36,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36 WrapperNode [2021-10-21 20:13:36,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:36,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:36,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:13:36,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:13:36,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:36,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:37,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:13:37,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:13:37,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:13:37,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:13:37,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:13:37,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:13:37,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:13:37,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (1/1) ... [2021-10-21 20:13:37,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:13:37,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:37,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:37,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:13:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:13:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:13:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:13:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:13:37,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:13:37,342 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 20:13:37,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:37 BoogieIcfgContainer [2021-10-21 20:13:37,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:13:37,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:13:37,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:13:37,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:13:37,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:13:36" (1/3) ... [2021-10-21 20:13:37,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5518de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:13:37, skipping insertion in model container [2021-10-21 20:13:37,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:36" (2/3) ... [2021-10-21 20:13:37,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5518de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:13:37, skipping insertion in model container [2021-10-21 20:13:37,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:37" (3/3) ... [2021-10-21 20:13:37,353 INFO L111 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2021-10-21 20:13:37,358 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:13:37,358 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:13:37,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:13:37,414 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:13:37,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:13:37,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.6) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:13:37,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:37,434 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:37,435 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:37,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1232845228, now seen corresponding path program 1 times [2021-10-21 20:13:37,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:37,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986344989] [2021-10-21 20:13:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:37,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:37,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:37,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986344989] [2021-10-21 20:13:37,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986344989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:37,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:37,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:13:37,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438144962] [2021-10-21 20:13:37,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:13:37,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:13:37,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:13:37,618 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.6) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:37,631 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2021-10-21 20:13:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:13:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 20:13:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:37,640 INFO L225 Difference]: With dead ends: 31 [2021-10-21 20:13:37,640 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 20:13:37,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:13:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 20:13:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 20:13:37,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-21 20:13:37,670 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2021-10-21 20:13:37,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:37,671 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-21 20:13:37,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-21 20:13:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:13:37,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:37,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:37,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:13:37,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:37,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:37,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2042191854, now seen corresponding path program 1 times [2021-10-21 20:13:37,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:37,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301330373] [2021-10-21 20:13:37,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:37,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:37,695 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:13:37,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942744142] [2021-10-21 20:13:37,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:37,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:37,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:37,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:37,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:13:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:37,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:13:37,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:38,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:38,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301330373] [2021-10-21 20:13:38,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:13:38,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942744142] [2021-10-21 20:13:38,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942744142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:38,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:38,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:13:38,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380175482] [2021-10-21 20:13:38,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:13:38,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:38,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:13:38,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:13:38,500 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:38,583 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-10-21 20:13:38,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:13:38,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 20:13:38,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:38,585 INFO L225 Difference]: With dead ends: 23 [2021-10-21 20:13:38,585 INFO L226 Difference]: Without dead ends: 19 [2021-10-21 20:13:38,587 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 65.0ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:13:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-21 20:13:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2021-10-21 20:13:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-21 20:13:38,596 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-10-21 20:13:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:38,597 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-21 20:13:38,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-10-21 20:13:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:13:38,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:38,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:38,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:38,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:38,805 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:38,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:38,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2042132272, now seen corresponding path program 1 times [2021-10-21 20:13:38,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:38,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591371165] [2021-10-21 20:13:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:38,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:38,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:13:38,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982707249] [2021-10-21 20:13:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:38,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:38,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:38,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:38,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:13:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:38,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:13:38,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:39,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:39,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591371165] [2021-10-21 20:13:39,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:13:39,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982707249] [2021-10-21 20:13:39,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982707249] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:39,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:39,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:13:39,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252837337] [2021-10-21 20:13:39,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:13:39,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:13:39,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:13:39,365 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:39,418 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-10-21 20:13:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:13:39,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 20:13:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:39,420 INFO L225 Difference]: With dead ends: 19 [2021-10-21 20:13:39,420 INFO L226 Difference]: Without dead ends: 14 [2021-10-21 20:13:39,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:13:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-21 20:13:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-21 20:13:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-21 20:13:39,426 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2021-10-21 20:13:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:39,427 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-21 20:13:39,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-21 20:13:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 20:13:39,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:39,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:39,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:39,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:39,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:39,654 INFO L82 PathProgramCache]: Analyzing trace with hash 387361989, now seen corresponding path program 1 times [2021-10-21 20:13:39,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:39,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383896183] [2021-10-21 20:13:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:39,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:39,677 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:13:39,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689048842] [2021-10-21 20:13:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:39,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:39,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:13:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:39,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:13:39,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:39,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:39,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383896183] [2021-10-21 20:13:39,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:13:39,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689048842] [2021-10-21 20:13:39,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689048842] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:39,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:39,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:13:39,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080401180] [2021-10-21 20:13:39,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:13:39,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:39,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:13:39,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:39,849 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:39,883 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-10-21 20:13:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:13:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-21 20:13:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:39,884 INFO L225 Difference]: With dead ends: 23 [2021-10-21 20:13:39,885 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 20:13:39,886 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:13:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 20:13:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-21 20:13:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-21 20:13:39,890 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 13 [2021-10-21 20:13:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:39,890 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-21 20:13:39,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-21 20:13:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 20:13:39,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:39,891 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:39,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:40,100 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:40,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1988806915, now seen corresponding path program 1 times [2021-10-21 20:13:40,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:40,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624711850] [2021-10-21 20:13:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:40,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:40,116 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:13:40,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855521966] [2021-10-21 20:13:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:40,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:40,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:40,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:40,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:13:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:40,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:13:40,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:40,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:13:40,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:40,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624711850] [2021-10-21 20:13:40,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:13:40,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855521966] [2021-10-21 20:13:40,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855521966] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:40,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:40,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:13:40,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796672637] [2021-10-21 20:13:40,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:13:40,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:13:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:13:40,633 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:40,699 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-21 20:13:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:13:40,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-21 20:13:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:40,702 INFO L225 Difference]: With dead ends: 19 [2021-10-21 20:13:40,702 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 20:13:40,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 62.6ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:13:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 20:13:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-21 20:13:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:40,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-21 20:13:40,708 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 14 [2021-10-21 20:13:40,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:40,709 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 20:13:40,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-21 20:13:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 20:13:40,711 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:40,711 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:40,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:40,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:40,924 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:40,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:40,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1988866497, now seen corresponding path program 1 times [2021-10-21 20:13:40,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:40,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939867586] [2021-10-21 20:13:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:40,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:40,949 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:13:40,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800689467] [2021-10-21 20:13:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:40,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:40,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:40,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:40,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:13:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:41,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:13:41,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:13:41,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:41,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939867586] [2021-10-21 20:13:41,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:13:41,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800689467] [2021-10-21 20:13:41,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800689467] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:41,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:41,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:13:41,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189355563] [2021-10-21 20:13:41,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:13:41,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:13:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:13:41,513 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:41,555 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-21 20:13:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:13:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-21 20:13:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:41,555 INFO L225 Difference]: With dead ends: 15 [2021-10-21 20:13:41,555 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:13:41,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 45.8ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:13:41,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:13:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:13:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:13:41,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-21 20:13:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:41,557 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:13:41,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:13:41,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:13:41,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:13:41,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:41,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:41,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:13:41,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:13:41,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:13:41,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:13:41,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:13:41,798 INFO L853 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 58) no Hoare annotation was computed. [2021-10-21 20:13:41,798 INFO L860 garLoopResultBuilder]: At program point L44-1(lines 44 58) the Hoare annotation is: true [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:13:41,798 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 54 56) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L853 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~m~0) (< 0 (mod ULTIMATE.start_main_~d~0 4294967296))) [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point L46-3(lines 44 58) no Hoare annotation was computed. [2021-10-21 20:13:41,799 INFO L860 garLoopResultBuilder]: At program point L59(lines 36 60) the Hoare annotation is: true [2021-10-21 20:13:41,799 INFO L857 garLoopResultBuilder]: For program point L2(lines 2 4) no Hoare annotation was computed. [2021-10-21 20:13:41,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:13:41,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:13:41 BoogieIcfgContainer [2021-10-21 20:13:41,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:13:41,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:13:41,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:13:41,812 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:13:41,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:37" (3/4) ... [2021-10-21 20:13:41,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:13:41,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 20:13:41,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:13:41,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:13:41,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:13:41,858 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:13:41,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:13:41,860 INFO L168 Benchmark]: Toolchain (without parser) took 5133.31 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.8 MB in the beginning and 48.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,860 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory was 72.1 MB in the beginning and 72.0 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:41,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.63 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.6 MB in the beginning and 96.7 MB in the end (delta: -41.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 121.6 MB. Free memory was 96.7 MB in the beginning and 95.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:41,862 INFO L168 Benchmark]: Boogie Preprocessor took 22.33 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 94.2 MB in the end (delta: 851.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,862 INFO L168 Benchmark]: RCFGBuilder took 304.68 ms. Allocated memory is still 121.6 MB. Free memory was 94.2 MB in the beginning and 84.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,863 INFO L168 Benchmark]: TraceAbstraction took 4464.98 ms. Allocated memory is still 121.6 MB. Free memory was 83.8 MB in the beginning and 50.9 MB in the end (delta: 32.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,863 INFO L168 Benchmark]: Witness Printer took 46.75 ms. Allocated memory is still 121.6 MB. Free memory was 50.9 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:41,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory was 72.1 MB in the beginning and 72.0 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.63 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.6 MB in the beginning and 96.7 MB in the end (delta: -41.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 121.6 MB. Free memory was 96.7 MB in the beginning and 95.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.33 ms. Allocated memory is still 121.6 MB. Free memory was 95.0 MB in the beginning and 94.2 MB in the end (delta: 851.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 304.68 ms. Allocated memory is still 121.6 MB. Free memory was 94.2 MB in the beginning and 84.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4464.98 ms. Allocated memory is still 121.6 MB. Free memory was 83.8 MB in the beginning and 50.9 MB in the end (delta: 32.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * Witness Printer took 46.75 ms. Allocated memory is still 121.6 MB. Free memory was 50.9 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4397.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 14.6ms, AutomataDifference: 337.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 37.3ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 39 SDslu, 67 SDs, 0 SdLazy, 136 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 144.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 235.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 16 HoareAnnotationTreeSize, 4 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 18.9ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 13.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 38.2ms SsaConstructionTime, 153.2ms SatisfiabilityAnalysisTime, 2168.4ms InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 18 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: n == m && 0 < d % 4294967296 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:13:41,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99da3341-8983-48f9-a73b-14c3c72da0aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...