./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/jain_7-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/jain_7-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY --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 ec757148a991f4b3d1dfc96ef4137399e4a0f35295201340aed6c25a7180c165 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:36:16,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:36:16,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:36:16,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:36:16,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:36:16,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:36:16,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:36:16,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:36:16,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:36:16,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:36:16,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:36:16,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:36:16,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:36:16,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:36:16,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:36:16,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:36:16,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:36:16,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:36:16,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:36:16,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:36:16,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:36:16,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:36:16,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:36:16,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:36:16,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:36:16,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:36:16,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:36:16,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:36:16,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:36:16,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:36:16,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:36:16,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:36:16,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:36:16,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:36:16,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:36:16,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:36:16,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:36:16,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:36:16,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:36:16,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:36:16,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:36:16,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:36:16,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:36:16,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:36:16,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:36:16,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:36:16,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:36:16,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:36:16,839 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:36:16,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:36:16,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:36:16,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:36:16,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:36:16,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:36:16,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:36:16,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:36:16,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:36:16,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:36:16,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:36:16,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:36:16,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:36:16,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:36:16,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:36:16,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:36:16,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:36:16,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:36:16,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:36:16,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:36:16,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:36:16,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:36:16,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:36:16,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:36:16,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:36:16,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:36:16,850 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_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec757148a991f4b3d1dfc96ef4137399e4a0f35295201340aed6c25a7180c165 [2021-11-07 07:36:17,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:36:17,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:36:17,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:36:17,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:36:17,291 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:36:17,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/bitvector/jain_7-2.c [2021-11-07 07:36:17,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/data/4a20c66c3/12580d0372e5457d88b1719c0b5bd6e7/FLAGca7f35972 [2021-11-07 07:36:17,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:36:17,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/sv-benchmarks/c/bitvector/jain_7-2.c [2021-11-07 07:36:17,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/data/4a20c66c3/12580d0372e5457d88b1719c0b5bd6e7/FLAGca7f35972 [2021-11-07 07:36:18,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/data/4a20c66c3/12580d0372e5457d88b1719c0b5bd6e7 [2021-11-07 07:36:18,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:36:18,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:36:18,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:36:18,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:36:18,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:36:18,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d542cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18, skipping insertion in model container [2021-11-07 07:36:18,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:36:18,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:36:18,566 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_204f393b-48f0-43f4-aa61-980252299a2f/sv-benchmarks/c/bitvector/jain_7-2.c[675,688] [2021-11-07 07:36:18,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:36:18,591 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:36:18,604 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_204f393b-48f0-43f4-aa61-980252299a2f/sv-benchmarks/c/bitvector/jain_7-2.c[675,688] [2021-11-07 07:36:18,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:36:18,621 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:36:18,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18 WrapperNode [2021-11-07 07:36:18,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:36:18,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:36:18,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:36:18,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:36:18,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:36:18,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:36:18,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:36:18,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:36:18,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:36:18,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:36:18,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:36:18,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:36:18,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (1/1) ... [2021-11-07 07:36:18,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:36:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:18,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:36:18,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:36:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:36:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:36:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:36:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:36:19,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:36:19,157 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 07:36:19,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:19 BoogieIcfgContainer [2021-11-07 07:36:19,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:36:19,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:36:19,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:36:19,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:36:19,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:36:18" (1/3) ... [2021-11-07 07:36:19,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b471c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:19, skipping insertion in model container [2021-11-07 07:36:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:18" (2/3) ... [2021-11-07 07:36:19,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b471c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:19, skipping insertion in model container [2021-11-07 07:36:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:19" (3/3) ... [2021-11-07 07:36:19,186 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2021-11-07 07:36:19,193 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:36:19,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:36:19,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:36:19,277 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:36:19,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:36:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 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) [2021-11-07 07:36:19,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 07:36:19,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:19,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 07:36:19,320 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:36:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-11-07 07:36:19,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:19,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802589172] [2021-11-07 07:36:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:19,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:19,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:19,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802589172] [2021-11-07 07:36:19,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802589172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:19,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:19,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:36:19,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925242265] [2021-11-07 07:36:19,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:36:19,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:19,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:36:19,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:36:19,728 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:19,769 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2021-11-07 07:36:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:36:19,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2021-11-07 07:36:19,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:19,781 INFO L225 Difference]: With dead ends: 16 [2021-11-07 07:36:19,781 INFO L226 Difference]: Without dead ends: 8 [2021-11-07 07:36:19,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:36:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-07 07:36:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-07 07:36:19,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-07 07:36:19,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-11-07 07:36:19,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:19,828 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-07 07:36:19,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:19,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-07 07:36:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 07:36:19,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:19,829 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-07 07:36:19,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:36:19,837 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:36:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2021-11-07 07:36:19,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:19,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293039579] [2021-11-07 07:36:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:19,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:20,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:20,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293039579] [2021-11-07 07:36:20,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293039579] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:20,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113547933] [2021-11-07 07:36:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:20,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:20,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:20,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:36:20,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:36:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:20,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 07:36:20,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:22,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113547933] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:22,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:22,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-07 07:36:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166008280] [2021-11-07 07:36:22,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:36:22,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:22,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:36:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2021-11-07 07:36:22,821 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-11-07 07:36:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:31,730 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-07 07:36:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:36:31,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 7 [2021-11-07 07:36:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:31,731 INFO L225 Difference]: With dead ends: 13 [2021-11-07 07:36:31,731 INFO L226 Difference]: Without dead ends: 11 [2021-11-07 07:36:31,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2021-11-07 07:36:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-07 07:36:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-07 07:36:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:31,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-07 07:36:31,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2021-11-07 07:36:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:31,749 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-07 07:36:31,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-11-07 07:36:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-07 07:36:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 07:36:31,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:31,752 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2021-11-07 07:36:31,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 07:36:31,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:31,958 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:36:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:31,959 INFO L85 PathProgramCache]: Analyzing trace with hash 721435418, now seen corresponding path program 2 times [2021-11-07 07:36:31,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:31,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693144034] [2021-11-07 07:36:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:31,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:36:32,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:32,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693144034] [2021-11-07 07:36:32,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693144034] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:32,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140671616] [2021-11-07 07:36:32,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:36:32,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:32,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:36:32,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:36:32,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:36:32,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:36:32,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 07:36:32,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:36:37,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140671616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:37,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:37,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-07 07:36:37,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384483001] [2021-11-07 07:36:37,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:36:37,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:37,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:36:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2021-11-07 07:36:37,100 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2021-11-07 07:36:45,214 WARN L207 SmtUtils]: Spent 8.09 s on a formula simplification that was a NOOP. DAG size: 37 [2021-11-07 07:36:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:45,240 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-07 07:36:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:36:45,243 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 9 [2021-11-07 07:36:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:45,243 INFO L225 Difference]: With dead ends: 10 [2021-11-07 07:36:45,243 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 07:36:45,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2021-11-07 07:36:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 07:36:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 07:36:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 07:36:45,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-07 07:36:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:45,246 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:36:45,246 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) [2021-11-07 07:36:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:36:45,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 07:36:45,250 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:36:45,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:36:45,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:45,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 07:36:45,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:36:45,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:37:01,664 WARN L207 SmtUtils]: Spent 16.15 s on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-11-07 07:37:01,667 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 07:37:01,668 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-11-07 07:37:01,668 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 35) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~z~0 0) (= ULTIMATE.start_main_~y~0 0) (= ULTIMATE.start_main_~x~0 0)) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= 0 (mod (* ULTIMATE.start_main_~x~0 1048575) (- 1048576))) (<= (+ ULTIMATE.start_main_~z~0 (* 4 ULTIMATE.start_main_~x~0)) (+ (* 4194304 (div (+ (* ULTIMATE.start_main_~y~0 (- 2)) (* ULTIMATE.start_main_~x~0 4) ULTIMATE.start_main_~z~0) 4194304)) (* 2 ULTIMATE.start_main_~y~0))) (= (mod (* ULTIMATE.start_main_~y~0 2097151) (- 2097152)) 0) (= 0 (mod (* ULTIMATE.start_main_~z~0 4194303) (- 4194304))))) [2021-11-07 07:37:01,668 INFO L853 garLoopResultBuilder]: At program point L36(lines 20 37) the Hoare annotation is: false [2021-11-07 07:37:01,669 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 07:37:01,669 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 07:37:01,669 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 07:37:01,669 INFO L857 garLoopResultBuilder]: For program point L28-2(lines 28 35) no Hoare annotation was computed. [2021-11-07 07:37:01,669 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-11-07 07:37:01,670 INFO L857 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-11-07 07:37:01,674 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1] [2021-11-07 07:37:01,676 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:37:01,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:37:01 BoogieIcfgContainer [2021-11-07 07:37:01,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:37:01,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:37:01,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:37:01,708 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:37:01,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:19" (3/4) ... [2021-11-07 07:37:01,713 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 07:37:01,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 07:37:01,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 07:37:01,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:37:01,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:37:01,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 07:37:01,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:37:01,768 INFO L168 Benchmark]: Toolchain (without parser) took 43458.03 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.1 MB in the beginning and 51.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,769 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 73.3 MB in the beginning and 73.2 MB in the end (delta: 68.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:37:01,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.69 ms. Allocated memory is still 92.3 MB. Free memory was 56.9 MB in the beginning and 69.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 68.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,772 INFO L168 Benchmark]: Boogie Preprocessor took 54.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 986.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:37:01,772 INFO L168 Benchmark]: RCFGBuilder took 396.97 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 58.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,773 INFO L168 Benchmark]: TraceAbstraction took 42544.07 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.0 MB in the beginning and 54.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,774 INFO L168 Benchmark]: Witness Printer took 59.25 ms. Allocated memory is still 111.1 MB. Free memory was 54.2 MB in the beginning and 51.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:37:01,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 73.3 MB in the beginning and 73.2 MB in the end (delta: 68.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.69 ms. Allocated memory is still 92.3 MB. Free memory was 56.9 MB in the beginning and 69.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.28 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 68.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 986.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 396.97 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 58.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 42544.07 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.0 MB in the beginning and 54.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * Witness Printer took 59.25 ms. Allocated memory is still 111.1 MB. Free memory was 54.2 MB in the beginning and 51.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.4s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 22 SDs, 0 SdLazy, 25 SolverSat, 6 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 59 HoareAnnotationTreeSize, 2 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 16.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 8 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 4/16 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: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((z == 0 && y == 0) && x == 0) || ((((1 <= cond && 0 == x * 1048575 % -1048576) && z + 4 * x <= 4194304 * ((y * -2 + x * 4 + z) / 4194304) + 2 * y) && y * 2097151 % -2097152 == 0) && 0 == z * 4194303 % -4194304) RESULT: Ultimate proved your program to be correct! [2021-11-07 07:37:01,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204f393b-48f0-43f4-aa61-980252299a2f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE