./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:35:58,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:35:58,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:35:58,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:35:58,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:35:58,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:35:58,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:35:58,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:35:58,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:35:58,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:35:58,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:35:58,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:35:58,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:35:58,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:35:58,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:35:58,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:35:58,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:35:58,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:35:58,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:35:58,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:35:58,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:35:58,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:35:58,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:35:58,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:35:58,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:35:58,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:35:58,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:35:58,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:35:58,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:35:58,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:35:58,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:35:58,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:35:58,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:35:58,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:35:58,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:35:58,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:35:58,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:35:58,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:35:58,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:35:58,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:35:58,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:35:58,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:35:58,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:35:58,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:35:58,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:35:58,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:35:58,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:35:58,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:35:58,745 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:35:58,745 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:35:58,746 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:35:58,746 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:35:58,747 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:35:58,748 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:35:58,748 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:35:58,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:35:58,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:35:58,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:35:58,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:35:58,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:35:58,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:35:58,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:35:58,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:35:58,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:35:58,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:35:58,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:35:58,751 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:35:58,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:35:58,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:35:58,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:35:58,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:35:58,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:35:58,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:35:58,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:35:58,756 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:35:58,756 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 [2021-10-28 09:35:59,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:35:59,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:35:59,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:35:59,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:35:59,061 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:35:59,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2021-10-28 09:35:59,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/data/1b6e26756/c0ec51e39b0540c58f7341c1f96d38e9/FLAGe6b3bd65a [2021-10-28 09:35:59,566 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:35:59,566 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2021-10-28 09:35:59,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/data/1b6e26756/c0ec51e39b0540c58f7341c1f96d38e9/FLAGe6b3bd65a [2021-10-28 09:35:59,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/data/1b6e26756/c0ec51e39b0540c58f7341c1f96d38e9 [2021-10-28 09:35:59,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:35:59,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:35:59,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:35:59,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:35:59,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:35:59,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:59" (1/1) ... [2021-10-28 09:35:59,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5284d418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:59, skipping insertion in model container [2021-10-28 09:35:59,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:59" (1/1) ... [2021-10-28 09:36:00,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:36:00,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:36:00,194 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_53933699-e3b8-42a3-aa94-7bcfdb26441c/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2021-10-28 09:36:00,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:36:00,226 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:36:00,239 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_53933699-e3b8-42a3-aa94-7bcfdb26441c/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2021-10-28 09:36:00,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:36:00,258 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:36:00,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00 WrapperNode [2021-10-28 09:36:00,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:36:00,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:36:00,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:36:00,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:36:00,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:36:00,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:36:00,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:36:00,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:36:00,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:36:00,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:36:00,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:36:00,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:36:00,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (1/1) ... [2021-10-28 09:36:00,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:00,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:00,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:36:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:36:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:36:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:36:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:36:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:36:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:36:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:36:00,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:36:00,614 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 09:36:00,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:00 BoogieIcfgContainer [2021-10-28 09:36:00,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:36:00,617 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:36:00,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:36:00,621 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:36:00,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:36:00,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:35:59" (1/3) ... [2021-10-28 09:36:00,624 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e091644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:36:00, skipping insertion in model container [2021-10-28 09:36:00,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:36:00,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:00" (2/3) ... [2021-10-28 09:36:00,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e091644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:36:00, skipping insertion in model container [2021-10-28 09:36:00,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:36:00,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:00" (3/3) ... [2021-10-28 09:36:00,627 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_assert_loop_dep.i [2021-10-28 09:36:00,671 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:36:00,672 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:36:00,672 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:36:00,672 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:36:00,672 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:36:00,672 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:36:00,672 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:36:00,673 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:36:00,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-28 09:36:00,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:36:00,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:00,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:00,712 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:36:00,712 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:36:00,712 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:36:00,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-28 09:36:00,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:36:00,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:00,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:00,716 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:36:00,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:36:00,723 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 8#L-1true havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 13#L18-3true [2021-10-28 09:36:00,723 INFO L793 eck$LassoCheckResult]: Loop: 13#L18-3true assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 12#L18-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13#L18-3true [2021-10-28 09:36:00,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:36:00,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:00,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571969450] [2021-10-28 09:36:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:00,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,865 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-28 09:36:00,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:00,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318226915] [2021-10-28 09:36:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:00,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,920 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,931 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:00,933 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-28 09:36:00,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:00,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101984410] [2021-10-28 09:36:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:00,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,962 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:00,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:01,557 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:36:01,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:36:01,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:36:01,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:36:01,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:36:01,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:01,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:36:01,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:36:01,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_assert_loop_dep.i_Iteration1_Lasso [2021-10-28 09:36:01,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:36:01,560 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:36:01,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:01,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:36:02,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:36:02,013 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:36:02,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:36:02,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:36:02,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:36:02,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:36:02,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:36:02,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:36:02,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:36:02,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:36:02,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:36:02,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 09:36:02,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:36:02,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:36:02,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:36:02,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:36:02,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:36:02,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:36:02,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:36:02,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:36:02,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:36:02,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:36:02,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,525 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:36:02,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,609 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:36:02,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:36:02,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:36:02,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:36:02,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:36:02,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,753 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:36:02,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,825 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:36:02,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:36:02,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,878 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:36:02,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:36:02,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:36:02,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:36:02,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:36:02,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:36:02,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:36:02,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:36:02,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:36:02,939 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 09:36:02,939 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-28 09:36:02,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:36:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,946 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:36:02,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:36:02,981 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:36:02,981 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:36:02,982 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 199999*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1 Supporting invariants [] [2021-10-28 09:36:03,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:03,035 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 09:36:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:36:03,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,094 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:36:03,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:03,160 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:36:03,161 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 09:36:03,227 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 29 states and 41 transitions. Complement of second has 8 states. [2021-10-28 09:36:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:36:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 09:36:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-28 09:36:03,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:36:03,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:36:03,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:36:03,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:36:03,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 09:36:03,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:36:03,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2021-10-28 09:36:03,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 09:36:03,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 16 transitions. [2021-10-28 09:36:03,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:36:03,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:36:03,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-28 09:36:03,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:03,266 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:36:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-28 09:36:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 09:36:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 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) [2021-10-28 09:36:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-28 09:36:03,291 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:36:03,291 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:36:03,291 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:36:03,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-28 09:36:03,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 09:36:03,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:03,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:03,296 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:36:03,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:36:03,297 INFO L791 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 115#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 121#L18-3 assume !(main_~i~0 < 100000); 119#L18-4 main_~i~0 := 0; 120#L22-3 [2021-10-28 09:36:03,298 INFO L793 eck$LassoCheckResult]: Loop: 120#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 116#L13 assume !(0 == __VERIFIER_assert_~cond); 113#L13-3 havoc main_#t~mem5; 122#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 123#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 120#L22-3 [2021-10-28 09:36:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-28 09:36:03,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:03,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212378274] [2021-10-28 09:36:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:03,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:03,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:03,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212378274] [2021-10-28 09:36:03,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212378274] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:03,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:03,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:36:03,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635307950] [2021-10-28 09:36:03,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:03,461 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:36:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 51750045, now seen corresponding path program 1 times [2021-10-28 09:36:03,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:03,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965145756] [2021-10-28 09:36:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:03,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:03,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:03,494 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:03,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:03,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:36:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:36:03,674 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 09:36:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:03,712 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-10-28 09:36:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:36:03,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2021-10-28 09:36:03,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:03,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 19 transitions. [2021-10-28 09:36:03,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 09:36:03,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 09:36:03,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-10-28 09:36:03,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:03,718 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 09:36:03,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-10-28 09:36:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-28 09:36:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) 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) [2021-10-28 09:36:03,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-28 09:36:03,724 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-28 09:36:03,724 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-28 09:36:03,724 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:36:03,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-10-28 09:36:03,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:03,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:03,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:03,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:03,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:36:03,730 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 150#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 155#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 153#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 154#L18-3 assume !(main_~i~0 < 100000); 156#L18-4 main_~i~0 := 0; 157#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 163#L13 assume !(0 == __VERIFIER_assert_~cond); 162#L13-3 havoc main_#t~mem5; 158#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 159#L22-2 [2021-10-28 09:36:03,730 INFO L793 eck$LassoCheckResult]: Loop: 159#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 161#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 151#L13 assume !(0 == __VERIFIER_assert_~cond); 152#L13-3 havoc main_#t~mem5; 160#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 159#L22-2 [2021-10-28 09:36:03,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1436006135, now seen corresponding path program 1 times [2021-10-28 09:36:03,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:03,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591236947] [2021-10-28 09:36:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:03,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:03,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:03,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591236947] [2021-10-28 09:36:03,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591236947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:03,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226730897] [2021-10-28 09:36:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:03,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:03,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:03,807 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:03,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 09:36:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:36:03,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:03,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:03,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226730897] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:03,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:03,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 09:36:03,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966656289] [2021-10-28 09:36:03,908 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:36:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:03,908 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 2 times [2021-10-28 09:36:03,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:03,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777837434] [2021-10-28 09:36:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:03,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:03,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:03,931 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:04,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:04,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:36:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:36:04,108 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2021-10-28 09:36:04,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:04,151 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-10-28 09:36:04,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:36:04,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 26 transitions. [2021-10-28 09:36:04,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:04,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 26 transitions. [2021-10-28 09:36:04,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 09:36:04,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 09:36:04,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2021-10-28 09:36:04,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:04,161 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-10-28 09:36:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2021-10-28 09:36:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-10-28 09:36:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 21 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) [2021-10-28 09:36:04,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-10-28 09:36:04,165 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-28 09:36:04,165 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-28 09:36:04,165 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:36:04,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 24 transitions. [2021-10-28 09:36:04,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:04,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:04,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:04,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 09:36:04,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:36:04,168 INFO L791 eck$LassoCheckResult]: Stem: 223#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 224#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 229#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 230#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 231#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 227#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 228#L18-3 assume !(main_~i~0 < 100000); 232#L18-4 main_~i~0 := 0; 233#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 244#L13 assume !(0 == __VERIFIER_assert_~cond); 243#L13-3 havoc main_#t~mem5; 242#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 237#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 236#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 225#L13 assume !(0 == __VERIFIER_assert_~cond); 226#L13-3 havoc main_#t~mem5; 234#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 235#L22-2 [2021-10-28 09:36:04,168 INFO L793 eck$LassoCheckResult]: Loop: 235#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 241#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 240#L13 assume !(0 == __VERIFIER_assert_~cond); 239#L13-3 havoc main_#t~mem5; 238#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 235#L22-2 [2021-10-28 09:36:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash -974790727, now seen corresponding path program 1 times [2021-10-28 09:36:04,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:04,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481753014] [2021-10-28 09:36:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:36:04,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:04,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481753014] [2021-10-28 09:36:04,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481753014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:04,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912241913] [2021-10-28 09:36:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:04,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:04,260 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:04,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 09:36:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:04,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:36:04,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:36:04,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912241913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:04,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:04,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 09:36:04,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762512948] [2021-10-28 09:36:04,369 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:36:04,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 3 times [2021-10-28 09:36:04,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:04,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897120088] [2021-10-28 09:36:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:04,389 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:04,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:04,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:04,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:36:04,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:36:04,566 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-28 09:36:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:04,619 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-10-28 09:36:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:36:04,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 33 transitions. [2021-10-28 09:36:04,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:04,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 33 transitions. [2021-10-28 09:36:04,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 09:36:04,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 09:36:04,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 33 transitions. [2021-10-28 09:36:04,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:04,622 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-28 09:36:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 33 transitions. [2021-10-28 09:36:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-10-28 09:36:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 28 states have internal predecessors, (31), 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) [2021-10-28 09:36:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-28 09:36:04,625 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-28 09:36:04,625 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-28 09:36:04,625 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:36:04,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 31 transitions. [2021-10-28 09:36:04,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:04,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:04,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:04,627 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2021-10-28 09:36:04,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:36:04,627 INFO L791 eck$LassoCheckResult]: Stem: 335#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 336#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 339#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 340#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 341#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 337#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 338#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 350#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 349#L18-3 assume !(main_~i~0 < 100000); 342#L18-4 main_~i~0 := 0; 343#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 361#L13 assume !(0 == __VERIFIER_assert_~cond); 360#L13-3 havoc main_#t~mem5; 359#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 348#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 347#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 333#L13 assume !(0 == __VERIFIER_assert_~cond); 334#L13-3 havoc main_#t~mem5; 346#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 355#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 358#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 357#L13 assume !(0 == __VERIFIER_assert_~cond); 356#L13-3 havoc main_#t~mem5; 344#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 345#L22-2 [2021-10-28 09:36:04,628 INFO L793 eck$LassoCheckResult]: Loop: 345#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 354#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 353#L13 assume !(0 == __VERIFIER_assert_~cond); 352#L13-3 havoc main_#t~mem5; 351#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 345#L22-2 [2021-10-28 09:36:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1970397435, now seen corresponding path program 2 times [2021-10-28 09:36:04,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:04,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767110975] [2021-10-28 09:36:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 09:36:04,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:04,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767110975] [2021-10-28 09:36:04,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767110975] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:04,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749347289] [2021-10-28 09:36:04,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:36:04,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:04,743 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:04,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 09:36:04,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:36:04,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:04,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:36:04,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 09:36:04,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749347289] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:04,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:04,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 09:36:04,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814152520] [2021-10-28 09:36:04,891 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:36:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 4 times [2021-10-28 09:36:04,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:04,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521034750] [2021-10-28 09:36:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:04,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:04,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:05,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:36:05,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:36:05,052 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-28 09:36:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:05,103 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-10-28 09:36:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:36:05,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 40 transitions. [2021-10-28 09:36:05,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:05,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 38 states and 40 transitions. [2021-10-28 09:36:05,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 09:36:05,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 09:36:05,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 40 transitions. [2021-10-28 09:36:05,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:05,106 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-28 09:36:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 40 transitions. [2021-10-28 09:36:05,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-10-28 09:36:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 35 states have internal predecessors, (38), 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) [2021-10-28 09:36:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-28 09:36:05,109 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-28 09:36:05,109 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-28 09:36:05,109 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:36:05,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 38 transitions. [2021-10-28 09:36:05,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:36:05,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:36:05,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:36:05,111 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2021-10-28 09:36:05,111 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:36:05,112 INFO L791 eck$LassoCheckResult]: Stem: 481#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 482#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 485#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 486#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 487#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 483#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 484#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 497#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 496#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 495#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 494#L18-3 assume !(main_~i~0 < 100000); 488#L18-4 main_~i~0 := 0; 489#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 514#L13 assume !(0 == __VERIFIER_assert_~cond); 513#L13-3 havoc main_#t~mem5; 512#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 493#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 492#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 479#L13 assume !(0 == __VERIFIER_assert_~cond); 480#L13-3 havoc main_#t~mem5; 490#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 491#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 511#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 510#L13 assume !(0 == __VERIFIER_assert_~cond); 509#L13-3 havoc main_#t~mem5; 508#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 507#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 506#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 505#L13 assume !(0 == __VERIFIER_assert_~cond); 504#L13-3 havoc main_#t~mem5; 503#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 499#L22-2 [2021-10-28 09:36:05,112 INFO L793 eck$LassoCheckResult]: Loop: 499#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 502#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 501#L13 assume !(0 == __VERIFIER_assert_~cond); 500#L13-3 havoc main_#t~mem5; 498#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 499#L22-2 [2021-10-28 09:36:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:05,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1016089675, now seen corresponding path program 3 times [2021-10-28 09:36:05,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:05,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019692054] [2021-10-28 09:36:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:05,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 09:36:05,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:05,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019692054] [2021-10-28 09:36:05,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019692054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:05,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738631714] [2021-10-28 09:36:05,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:36:05,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:05,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:05,202 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:05,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 09:36:05,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 09:36:05,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:05,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:36:05,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:05,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-28 09:36:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-28 09:36:05,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738631714] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:05,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:36:05,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-10-28 09:36:05,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819697294] [2021-10-28 09:36:05,440 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:36:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 5 times [2021-10-28 09:36:05,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:05,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632678121] [2021-10-28 09:36:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:05,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:05,447 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:36:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:36:05,452 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:05,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:05,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:36:05,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:36:05,570 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-10-28 09:36:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:05,605 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-28 09:36:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:36:05,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2021-10-28 09:36:05,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:36:05,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-28 09:36:05,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:36:05,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:36:05,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:36:05,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:36:05,606 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:36:05,607 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:36:05,607 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:36:05,607 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:36:05,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:36:05,607 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:36:05,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:36:05,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:36:05 BoogieIcfgContainer [2021-10-28 09:36:05,613 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:36:05,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:36:05,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:36:05,613 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:36:05,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:00" (3/4) ... [2021-10-28 09:36:05,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:36:05,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:36:05,618 INFO L168 Benchmark]: Toolchain (without parser) took 5629.30 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.5 MB in the beginning and 74.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:05,619 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory is still 95.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:36:05,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.20 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 91.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:05,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.54 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 90.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:36:05,620 INFO L168 Benchmark]: Boogie Preprocessor took 22.29 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 89.1 MB in the end (delta: 965.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:05,620 INFO L168 Benchmark]: RCFGBuilder took 281.26 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:05,621 INFO L168 Benchmark]: BuchiAutomizer took 4995.23 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.1 MB in the beginning and 74.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:05,621 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 142.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:36:05,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory is still 95.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.20 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 91.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.54 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 90.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.29 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 89.1 MB in the end (delta: 965.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 281.26 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4995.23 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.1 MB in the beginning and 74.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 142.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 199999 * unknown-#length-unknown[a] + -8 * i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 7 iterations. TraceHistogramMax:4. Analysis of lassos took 4.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 5. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 42 SDtfs, 71 SDslu, 44 SDs, 0 SdLazy, 124 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital153 mio100 ax100 hnf100 lsp94 ukn56 mio100 lsp41 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:36:05,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:05,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:06,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:06,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:06,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53933699-e3b8-42a3-aa94-7bcfdb26441c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...