./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-12 23:59:07,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-12 23:59:07,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-12 23:59:07,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-12 23:59:07,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-12 23:59:07,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-12 23:59:07,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-12 23:59:07,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-12 23:59:07,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-12 23:59:07,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-12 23:59:07,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-12 23:59:07,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-12 23:59:07,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-12 23:59:07,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-12 23:59:07,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-12 23:59:07,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-12 23:59:07,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-12 23:59:07,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-12 23:59:07,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-12 23:59:07,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-12 23:59:07,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-12 23:59:07,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-12 23:59:07,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-12 23:59:07,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-12 23:59:07,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-12 23:59:07,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-12 23:59:07,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-12 23:59:07,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-12 23:59:07,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-12 23:59:07,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-12 23:59:07,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-12 23:59:07,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-12 23:59:07,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-12 23:59:07,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-12 23:59:07,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-12 23:59:07,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-12 23:59:07,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-12 23:59:07,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-12 23:59:07,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-12 23:59:07,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-12 23:59:07,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-12 23:59:07,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-12 23:59:07,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-12 23:59:07,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-12 23:59:07,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-12 23:59:07,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-12 23:59:07,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-12 23:59:07,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-12 23:59:07,771 INFO L138 SettingsManager]: * Use SBE=true [2021-10-12 23:59:07,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-12 23:59:07,771 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-12 23:59:07,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-12 23:59:07,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-12 23:59:07,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-12 23:59:07,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-12 23:59:07,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-12 23:59:07,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-12 23:59:07,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-12 23:59:07,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-12 23:59:07,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-12 23:59:07,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-12 23:59:07,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-12 23:59:07,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-12 23:59:07,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-12 23:59:07,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-12 23:59:07,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-12 23:59:07,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-12 23:59:07,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-12 23:59:07,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-12 23:59:07,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-12 23:59:07,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-12 23:59:07,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-12 23:59:07,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc [2021-10-12 23:59:08,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-12 23:59:08,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-12 23:59:08,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-12 23:59:08,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-12 23:59:08,146 INFO L275 PluginConnector]: CDTParser initialized [2021-10-12 23:59:08,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/gcd_1.c [2021-10-12 23:59:08,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/data/532960387/333fbfa4d14740c9bbec754e76f4cdbd/FLAG5df943ebe [2021-10-12 23:59:08,793 INFO L306 CDTParser]: Found 1 translation units. [2021-10-12 23:59:08,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/sv-benchmarks/c/bitvector/gcd_1.c [2021-10-12 23:59:08,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/data/532960387/333fbfa4d14740c9bbec754e76f4cdbd/FLAG5df943ebe [2021-10-12 23:59:09,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/data/532960387/333fbfa4d14740c9bbec754e76f4cdbd [2021-10-12 23:59:09,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-12 23:59:09,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-12 23:59:09,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:09,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-12 23:59:09,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-12 23:59:09,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d0e280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09, skipping insertion in model container [2021-10-12 23:59:09,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-12 23:59:09,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-12 23:59:09,368 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_5ffcf144-261d-4e8f-b528-6410f7ddc039/sv-benchmarks/c/bitvector/gcd_1.c[359,372] [2021-10-12 23:59:09,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:09,391 INFO L203 MainTranslator]: Completed pre-run [2021-10-12 23:59:09,403 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_5ffcf144-261d-4e8f-b528-6410f7ddc039/sv-benchmarks/c/bitvector/gcd_1.c[359,372] [2021-10-12 23:59:09,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:09,422 INFO L208 MainTranslator]: Completed translation [2021-10-12 23:59:09,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09 WrapperNode [2021-10-12 23:59:09,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:09,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:09,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-12 23:59:09,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-12 23:59:09,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:09,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-12 23:59:09,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-12 23:59:09,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-12 23:59:09,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-12 23:59:09,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-12 23:59:09,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-12 23:59:09,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-12 23:59:09,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (1/1) ... [2021-10-12 23:59:09,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-12 23:59:09,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:09,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-12 23:59:09,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-12 23:59:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-12 23:59:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-12 23:59:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-12 23:59:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-12 23:59:09,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-12 23:59:09,842 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-12 23:59:09,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:09 BoogieIcfgContainer [2021-10-12 23:59:09,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-12 23:59:09,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-12 23:59:09,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-12 23:59:09,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-12 23:59:09,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:59:09" (1/3) ... [2021-10-12 23:59:09,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6285c3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:09, skipping insertion in model container [2021-10-12 23:59:09,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:09" (2/3) ... [2021-10-12 23:59:09,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6285c3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:09, skipping insertion in model container [2021-10-12 23:59:09,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:09" (3/3) ... [2021-10-12 23:59:09,854 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1.c [2021-10-12 23:59:09,859 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-12 23:59:09,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-12 23:59:09,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-12 23:59:09,950 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-12 23:59:09,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-12 23:59:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) 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) [2021-10-12 23:59:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-12 23:59:10,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-12 23:59:10,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:10,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-12 23:59:10,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:10,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2002478831, now seen corresponding path program 1 times [2021-10-12 23:59:10,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:10,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6867497] [2021-10-12 23:59:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:10,159 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-12 23:59:10,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201785438] [2021-10-12 23:59:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:10,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-12 23:59:10,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-12 23:59:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:10,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-12 23:59:10,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-12 23:59:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:10,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:10,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6867497] [2021-10-12 23:59:10,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-12 23:59:10,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201785438] [2021-10-12 23:59:10,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201785438] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:10,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:10,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-12 23:59:10,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131791677] [2021-10-12 23:59:10,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-12 23:59:10,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:10,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-12 23:59:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-12 23:59:10,420 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:10,455 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2021-10-12 23:59:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-12 23:59:10,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-12 23:59:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-12 23:59:10,474 INFO L225 Difference]: With dead ends: 26 [2021-10-12 23:59:10,475 INFO L226 Difference]: Without dead ends: 12 [2021-10-12 23:59:10,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-12 23:59:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-12 23:59:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-12 23:59:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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) [2021-10-12 23:59:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-10-12 23:59:10,513 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2021-10-12 23:59:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-12 23:59:10,514 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-12 23:59:10,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-12 23:59:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-12 23:59:10,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-12 23:59:10,516 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:10,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-12 23:59:10,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-12 23:59:10,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-12 23:59:10,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:10,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1895646932, now seen corresponding path program 1 times [2021-10-12 23:59:10,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:10,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751414147] [2021-10-12 23:59:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:10,749 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-12 23:59:10,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705583049] [2021-10-12 23:59:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:10,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:10,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-12 23:59:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-12 23:59:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:10,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-12 23:59:10,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-12 23:59:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:10,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:10,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751414147] [2021-10-12 23:59:10,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-12 23:59:10,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705583049] [2021-10-12 23:59:10,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705583049] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-12 23:59:10,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-12 23:59:10,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-12 23:59:10,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985610462] [2021-10-12 23:59:10,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-12 23:59:10,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:10,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-12 23:59:10,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-12 23:59:10,972 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-10-12 23:59:11,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:11,032 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-12 23:59:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-12 23:59:11,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-12 23:59:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-12 23:59:11,050 INFO L225 Difference]: With dead ends: 18 [2021-10-12 23:59:11,050 INFO L226 Difference]: Without dead ends: 13 [2021-10-12 23:59:11,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-12 23:59:11,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-12 23:59:11,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-12 23:59:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-12 23:59:11,054 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2021-10-12 23:59:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-12 23:59:11,055 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-12 23:59:11,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-10-12 23:59:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-10-12 23:59:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-12 23:59:11,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-12 23:59:11,056 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:11,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-12 23:59:11,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:11,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-12 23:59:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:11,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1416141937, now seen corresponding path program 2 times [2021-10-12 23:59:11,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:11,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097957770] [2021-10-12 23:59:11,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:11,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:11,299 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-12 23:59:11,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431924371] [2021-10-12 23:59:11,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-12 23:59:11,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:11,304 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-12 23:59:11,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-12 23:59:20,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-12 23:59:20,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-12 23:59:20,962 WARN L261 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-12 23:59:20,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:00:25,448 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_gcd_test_~b (mod (mod c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_gcd_test_~a) 256)) (< 0 c_ULTIMATE.start_main_~y~0) (not (= c_ULTIMATE.start_gcd_test_~a 0)) (<= c_ULTIMATE.start_main_~y~0 127) (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int)) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 c_ULTIMATE.start_main_~y~0) 0) (= c_ULTIMATE.start_gcd_test_~a (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) c_ULTIMATE.start_main_~y~0) 256)) (< v_ULTIMATE.start_gcd_test_~a_9 0) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9))))) is different from false [2021-10-13 00:00:38,082 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod (mod c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_gcd_test_~a) 256) 0) (< 0 c_ULTIMATE.start_main_~y~0) (not (= c_ULTIMATE.start_gcd_test_~a 0)) (<= c_ULTIMATE.start_main_~y~0 127) (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int)) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 c_ULTIMATE.start_main_~y~0) 0) (= c_ULTIMATE.start_gcd_test_~a (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) c_ULTIMATE.start_main_~y~0) 256)) (< v_ULTIMATE.start_gcd_test_~a_9 0) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9))))) is different from false [2021-10-13 00:00:51,274 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int)) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 c_ULTIMATE.start_main_~y~0) 0) (< v_ULTIMATE.start_gcd_test_~a_9 0) (= |c_ULTIMATE.start_gcd_test_#res| (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) c_ULTIMATE.start_main_~y~0) 256)) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9)))) (not (= |c_ULTIMATE.start_gcd_test_#res| 0)) (< 0 c_ULTIMATE.start_main_~y~0) (<= c_ULTIMATE.start_main_~y~0 127) (= (mod (mod c_ULTIMATE.start_main_~y~0 |c_ULTIMATE.start_gcd_test_#res|) 256) 0)) is different from false [2021-10-13 00:02:11,333 WARN L838 $PredicateComparison]: unable to prove that (and (<= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse0 (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) ULTIMATE.start_main_~y~0) 256))) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 ULTIMATE.start_main_~y~0) 0) (< v_ULTIMATE.start_gcd_test_~a_9 0) (< 0 ULTIMATE.start_main_~y~0) (not (= .cse0 0)) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9)) (= (mod (mod ULTIMATE.start_main_~y~0 .cse0) 256) 0))))) is different from false [2021-10-13 00:02:53,021 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse0 (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) ULTIMATE.start_main_~y~0) 256))) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 ULTIMATE.start_main_~y~0) 0) (< v_ULTIMATE.start_gcd_test_~a_9 0) (< 0 ULTIMATE.start_main_~y~0) (not (= .cse0 0)) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9)) (= (mod (mod ULTIMATE.start_main_~y~0 .cse0) 256) 0)))) is different from false [2021-10-13 00:02:55,026 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse0 (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) ULTIMATE.start_main_~y~0) 256))) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 ULTIMATE.start_main_~y~0) 0) (< v_ULTIMATE.start_gcd_test_~a_9 0) (< 0 ULTIMATE.start_main_~y~0) (not (= .cse0 0)) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9)) (= (mod (mod ULTIMATE.start_main_~y~0 .cse0) 256) 0)))) is different from true [2021-10-13 00:02:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-10-13 00:02:55,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:55,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097957770] [2021-10-13 00:02:55,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:02:55,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431924371] [2021-10-13 00:02:55,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431924371] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:55,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:02:55,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-13 00:02:55,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61027513] [2021-10-13 00:02:55,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:02:55,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:02:55,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=24, Unknown=6, NotChecked=60, Total=110 [2021-10-13 00:02:55,030 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-10-13 00:03:06,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:03:06,302 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-10-13 00:03:06,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:03:06,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 00:03:06,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:03:06,304 INFO L225 Difference]: With dead ends: 22 [2021-10-13 00:03:06,304 INFO L226 Difference]: Without dead ends: 17 [2021-10-13 00:03:06,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 19319.4ms TimeCoverageRelationStatistics Valid=33, Invalid=52, Unknown=7, NotChecked=90, Total=182 [2021-10-13 00:03:06,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-13 00:03:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2021-10-13 00:03:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-13 00:03:06,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-10-13 00:03:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:03:06,308 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-13 00:03:06,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-10-13 00:03:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-13 00:03:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:03:06,309 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:03:06,309 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:03:06,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:06,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:03:06,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:03:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:06,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1002381772, now seen corresponding path program 3 times [2021-10-13 00:03:06,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:06,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618069232] [2021-10-13 00:03:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:06,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:06,528 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:03:06,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204837437] [2021-10-13 00:03:06,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:03:06,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:03:06,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:06,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:03:06,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:03:21,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 00:03:21,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:03:21,481 WARN L261 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 00:03:21,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:05:54,400 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_gcd_test_~a_12 Int) (v_ULTIMATE.start_gcd_test_~a_14 Int)) (and (= c_ULTIMATE.start_gcd_test_~a (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_12 255) 256) v_ULTIMATE.start_gcd_test_~a_14) 256)) (= c_ULTIMATE.start_gcd_test_~b (mod (mod v_ULTIMATE.start_gcd_test_~a_14 c_ULTIMATE.start_gcd_test_~a) 256)) (< 0 v_ULTIMATE.start_gcd_test_~a_14) (<= 0 (+ v_ULTIMATE.start_gcd_test_~a_12 128)) (= (mod v_ULTIMATE.start_gcd_test_~a_12 v_ULTIMATE.start_gcd_test_~a_14) 0) (< v_ULTIMATE.start_gcd_test_~a_12 0))) (not (= c_ULTIMATE.start_gcd_test_~a 0))) is different from false [2021-10-13 00:06:28,824 WARN L207 SmtUtils]: Spent 5.92 s on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-10-13 00:06:28,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-10-13 00:06:28,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:06:28,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618069232] [2021-10-13 00:06:28,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:06:28,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204837437] [2021-10-13 00:06:28,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204837437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:06:28,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:06:28,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-13 00:06:28,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382170588] [2021-10-13 00:06:28,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:06:28,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:06:28,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:06:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=20, Unknown=3, NotChecked=8, Total=42 [2021-10-13 00:06:28,847 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-13 00:06:46,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:06:46,307 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-13 00:06:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:06:46,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 00:06:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:06:46,314 INFO L225 Difference]: With dead ends: 16 [2021-10-13 00:06:46,314 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:06:46,314 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11247.1ms TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=5, NotChecked=14, Total=90 [2021-10-13 00:06:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:06:46,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:06:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:06:46,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:06:46,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-13 00:06:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:06:46,316 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:06:46,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-13 00:06:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:06:46,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:06:46,319 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:06:46,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-13 00:06:46,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:06:46,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:06:46,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:06:46,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:06:46,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:07:10,955 WARN L207 SmtUtils]: Spent 24.40 s on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-10-13 00:07:10,958 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:07:10,958 INFO L857 garLoopResultBuilder]: For program point L19-1(lines 13 25) no Hoare annotation was computed. [2021-10-13 00:07:10,958 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2021-10-13 00:07:10,958 INFO L860 garLoopResultBuilder]: At program point L40(lines 28 41) the Hoare annotation is: true [2021-10-13 00:07:10,959 INFO L857 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-10-13 00:07:10,959 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2021-10-13 00:07:10,959 INFO L860 garLoopResultBuilder]: At program point L34-1(lines 34 38) the Hoare annotation is: true [2021-10-13 00:07:10,959 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:07:10,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:07:10,960 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:07:10,960 INFO L853 garLoopResultBuilder]: At program point L24(lines 12 25) the Hoare annotation is: (or (and (exists ((v_ULTIMATE.start_gcd_test_~a_9 Int)) (and (= (mod v_ULTIMATE.start_gcd_test_~a_9 ULTIMATE.start_main_~y~0) 0) (< v_ULTIMATE.start_gcd_test_~a_9 0) (= |ULTIMATE.start_gcd_test_#res| (mod (mod (mod (* v_ULTIMATE.start_gcd_test_~a_9 255) 256) ULTIMATE.start_main_~y~0) 256)) (<= 0 (+ 128 v_ULTIMATE.start_gcd_test_~a_9)))) (not (= |ULTIMATE.start_gcd_test_#res| 0)) (< 0 ULTIMATE.start_main_~y~0) (= (mod (mod ULTIMATE.start_main_~y~0 |ULTIMATE.start_gcd_test_#res|) 256) 0)) (and (= ULTIMATE.start_gcd_test_~a ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_gcd_test_#res| ULTIMATE.start_main_~y~0))) [2021-10-13 00:07:10,960 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-10-13 00:07:10,960 INFO L857 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-13 00:07:10,960 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 13 25) no Hoare annotation was computed. [2021-10-13 00:07:10,961 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-13 00:07:10,965 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:07:10,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:10,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:07:10 BoogieIcfgContainer [2021-10-13 00:07:10,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:07:10,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:07:10,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:07:10,989 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:07:10,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:09" (3/4) ... [2021-10-13 00:07:10,999 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:07:11,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-13 00:07:11,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 00:07:11,013 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:07:11,013 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:07:11,054 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_ULTIMATE.start_gcd_test_~a_9 : int :: ((v_ULTIMATE.start_gcd_test_~a_9 % y == 0 && v_ULTIMATE.start_gcd_test_~a_9 < 0) && \result == v_ULTIMATE.start_gcd_test_~a_9 * 255 % 256 % y % 256) && 0 <= 128 + v_ULTIMATE.start_gcd_test_~a_9) && !(\result == 0)) && 0 < y) && y % \result % 256 == 0) || (a == y && \result == y) [2021-10-13 00:07:11,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:07:11,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:07:11,080 INFO L168 Benchmark]: Toolchain (without parser) took 481936.00 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 55.8 MB in the beginning and 40.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,083 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:11,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.67 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 66.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.80 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 64.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,085 INFO L168 Benchmark]: Boogie Preprocessor took 23.92 ms. Allocated memory is still 90.2 MB. Free memory was 64.4 MB in the beginning and 63.5 MB in the end (delta: 837.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:11,085 INFO L168 Benchmark]: RCFGBuilder took 358.91 ms. Allocated memory is still 90.2 MB. Free memory was 63.5 MB in the beginning and 53.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,086 INFO L168 Benchmark]: TraceAbstraction took 481141.04 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 53.1 MB in the beginning and 44.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,086 INFO L168 Benchmark]: Witness Printer took 90.86 ms. Allocated memory is still 113.2 MB. Free memory was 43.0 MB in the beginning and 40.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:11,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.67 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 66.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.80 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 64.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.92 ms. Allocated memory is still 90.2 MB. Free memory was 64.4 MB in the beginning and 63.5 MB in the end (delta: 837.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 358.91 ms. Allocated memory is still 90.2 MB. Free memory was 63.5 MB in the beginning and 53.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 481141.04 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 53.1 MB in the beginning and 44.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * Witness Printer took 90.86 ms. Allocated memory is still 113.2 MB. Free memory was 43.0 MB in the beginning and 40.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 481024.4ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 46.7ms, AutomataDifference: 28901.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 24426.3ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 18 SDslu, 73 SDs, 0 SdLazy, 82 SolverSat, 8 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 19663.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 30608.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 13.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 24406.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 51.4ms SsaConstructionTime, 24503.7ms SatisfiabilityAnalysisTime, 401725.7ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 12 QuantifiedInterpolants, 697 SizeOfPredicates, 28 NumberOfNonLiveVariables, 318 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2021-10-13 00:07:11,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] [2021-10-13 00:07:11,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_gcd_test_~a_9,QUANTIFIED] Derived loop invariant: ((((\exists v_ULTIMATE.start_gcd_test_~a_9 : int :: ((v_ULTIMATE.start_gcd_test_~a_9 % y == 0 && v_ULTIMATE.start_gcd_test_~a_9 < 0) && \result == v_ULTIMATE.start_gcd_test_~a_9 * 255 % 256 % y % 256) && 0 <= 128 + v_ULTIMATE.start_gcd_test_~a_9) && !(\result == 0)) && 0 < y) && y % \result % 256 == 0) || (a == y && \result == y) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:07:11,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffcf144-261d-4e8f-b528-6410f7ddc039/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...