./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD --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 3a2c06ffe4451efc19431b7b50aeafd7da4d885b78d7f0fdbbfb76228ce66142 ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:00:37,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:00:37,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:00:37,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:00:37,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:00:37,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:00:37,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:00:37,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:00:37,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:00:37,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:00:37,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:00:37,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:00:37,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:00:37,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:00:37,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:00:37,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:00:37,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:00:37,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:00:37,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:00:37,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:00:37,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:00:37,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:00:37,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:00:37,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:00:37,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:00:37,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:00:37,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:00:37,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:00:37,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:00:37,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:00:37,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:00:37,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:00:37,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:00:37,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:00:37,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:00:37,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:00:37,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:00:37,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:00:37,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:00:37,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:00:37,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:00:37,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:00:37,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:00:37,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:00:37,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:00:37,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:00:37,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:00:37,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:00:37,680 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:00:37,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:00:37,680 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:00:37,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:00:37,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:00:37,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:00:37,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:00:37,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:00:37,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:00:37,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:00:37,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:00:37,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:00:37,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:00:37,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:00:37,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:00:37,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:00:37,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:00:37,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:00:37,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:00:37,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:00:37,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:00:37,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:00:37,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:00:37,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:00:37,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:00:37,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:00:37,686 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_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2c06ffe4451efc19431b7b50aeafd7da4d885b78d7f0fdbbfb76228ce66142 [2021-10-28 23:00:37,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:00:37,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:00:37,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:00:37,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:00:37,956 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:00:37,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2021-10-28 23:00:38,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/data/b2c66689c/a91706cff4d14d778c09dc08b2d48551/FLAGde052a6fa [2021-10-28 23:00:38,492 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:00:38,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2021-10-28 23:00:38,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/data/b2c66689c/a91706cff4d14d778c09dc08b2d48551/FLAGde052a6fa [2021-10-28 23:00:38,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/data/b2c66689c/a91706cff4d14d778c09dc08b2d48551 [2021-10-28 23:00:38,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:00:38,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:00:38,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:38,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:00:38,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:00:38,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:38" (1/1) ... [2021-10-28 23:00:38,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72483f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:38, skipping insertion in model container [2021-10-28 23:00:38,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:38" (1/1) ... [2021-10-28 23:00:38,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:00:38,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:00:39,047 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_8213612d-d554-4c27-b3dc-63f3ce4fba98/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c[628,641] [2021-10-28 23:00:39,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:39,097 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:00:39,113 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_8213612d-d554-4c27-b3dc-63f3ce4fba98/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c[628,641] [2021-10-28 23:00:39,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:39,128 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:00:39,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39 WrapperNode [2021-10-28 23:00:39,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:39,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:00:39,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:00:39,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:00:39,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:00:39,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:00:39,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:00:39,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:00:39,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:00:39,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:00:39,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:00:39,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:00:39,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (1/1) ... [2021-10-28 23:00:39,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:00:39,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:00:39,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:00:39,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:00:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:00:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:00:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-28 23:00:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-28 23:00:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:00:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:00:39,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:00:39,441 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:00:39,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:39 BoogieIcfgContainer [2021-10-28 23:00:39,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:00:39,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:00:39,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:00:39,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:00:39,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:00:38" (1/3) ... [2021-10-28 23:00:39,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59622465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:00:39, skipping insertion in model container [2021-10-28 23:00:39,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:39" (2/3) ... [2021-10-28 23:00:39,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59622465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:00:39, skipping insertion in model container [2021-10-28 23:00:39,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:39" (3/3) ... [2021-10-28 23:00:39,455 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2021-10-28 23:00:39,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:00:39,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:00:39,514 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:00:39,520 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:00:39,520 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:00:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:00:39,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:00:39,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:00:39,540 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:39,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:00:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times [2021-10-28 23:00:39,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:39,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523166131] [2021-10-28 23:00:39,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:39,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:00:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:00:39,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:00:39,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523166131] [2021-10-28 23:00:39,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523166131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:00:39,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:00:39,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:00:39,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920400180] [2021-10-28 23:00:39,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:00:39,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:00:39,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:00:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:00:39,982 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:00:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:00:40,088 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-10-28 23:00:40,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:00:40,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 23:00:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:00:40,105 INFO L225 Difference]: With dead ends: 28 [2021-10-28 23:00:40,105 INFO L226 Difference]: Without dead ends: 15 [2021-10-28 23:00:40,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:00:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-28 23:00:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-28 23:00:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:00:40,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-28 23:00:40,140 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2021-10-28 23:00:40,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:00:40,140 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-28 23:00:40,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:00:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-28 23:00:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:00:40,142 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:00:40,143 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:40,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:00:40,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:00:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash 679465686, now seen corresponding path program 1 times [2021-10-28 23:00:40,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:40,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372593115] [2021-10-28 23:00:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:40,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:00:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:00:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:00:40,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:00:40,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372593115] [2021-10-28 23:00:40,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372593115] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:00:40,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130791627] [2021-10-28 23:00:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:40,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:00:40,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:00:40,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:00:40,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:00:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:40,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:00:40,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:00:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:00:41,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130791627] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:00:41,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:00:41,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2021-10-28 23:00:41,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500093846] [2021-10-28 23:00:41,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:00:41,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:00:41,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:00:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:00:41,128 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:00:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:00:41,389 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-10-28 23:00:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:00:41,390 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 16 [2021-10-28 23:00:41,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:00:41,390 INFO L225 Difference]: With dead ends: 20 [2021-10-28 23:00:41,390 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:00:41,391 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:00:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:00:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:00:41,392 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) [2021-10-28 23:00:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:00:41,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-28 23:00:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:00:41,393 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:00:41,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:00:41,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:00:41,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:00:41,395 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:00:41,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:00:41,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:00:41,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:00:41,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:00:41,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:00:41,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:00:41,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:00:41,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:00:41,631 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:00:41,631 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:00:41,631 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:00:41,631 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:00:41,632 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-28 23:00:41,632 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-28 23:00:41,633 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-28 23:00:41,633 INFO L860 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: true [2021-10-28 23:00:41,633 INFO L857 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-10-28 23:00:41,634 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 21) no Hoare annotation was computed. [2021-10-28 23:00:41,634 INFO L857 garLoopResultBuilder]: For program point sumEXIT(lines 6 12) no Hoare annotation was computed. [2021-10-28 23:00:41,634 INFO L853 garLoopResultBuilder]: At program point L10(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (not (= (mod sum_~n 4294967296) 0))) [2021-10-28 23:00:41,634 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-10-28 23:00:41,634 INFO L857 garLoopResultBuilder]: For program point L7(lines 7 11) no Hoare annotation was computed. [2021-10-28 23:00:41,635 INFO L857 garLoopResultBuilder]: For program point sumFINAL(lines 6 12) no Hoare annotation was computed. [2021-10-28 23:00:41,635 INFO L860 garLoopResultBuilder]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2021-10-28 23:00:41,638 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:00:41,639 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:00:41,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:00:41 BoogieIcfgContainer [2021-10-28 23:00:41,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:00:41,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:00:41,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:00:41,645 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:00:41,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:39" (3/4) ... [2021-10-28 23:00:41,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:00:41,657 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2021-10-28 23:00:41,664 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 23:00:41,665 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-28 23:00:41,665 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:00:41,665 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:00:41,710 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:00:41,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:00:41,712 INFO L168 Benchmark]: Toolchain (without parser) took 2819.67 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 77.6 MB in the beginning and 104.6 MB in the end (delta: -27.0 MB). Peak memory consumption was 83.6 kB. Max. memory is 16.1 GB. [2021-10-28 23:00:41,712 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory is still 33.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:41,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.67 ms. Allocated memory is still 111.1 MB. Free memory was 77.4 MB in the beginning and 86.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:41,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.75 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:41,718 INFO L168 Benchmark]: Boogie Preprocessor took 19.11 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 84.4 MB in the end (delta: 835.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:41,719 INFO L168 Benchmark]: RCFGBuilder took 260.14 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 75.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:41,720 INFO L168 Benchmark]: TraceAbstraction took 2198.62 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 74.4 MB in the beginning and 106.7 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:41,720 INFO L168 Benchmark]: Witness Printer took 65.72 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 104.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:41,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory is still 33.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.67 ms. Allocated memory is still 111.1 MB. Free memory was 77.4 MB in the beginning and 86.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.75 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.11 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 84.4 MB in the end (delta: 835.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 260.14 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 75.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2198.62 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 74.4 MB in the beginning and 106.7 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 65.72 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 104.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 19]: 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 67 SDs, 0 SdLazy, 125 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 7 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/8 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 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:00:41,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8213612d-d554-4c27-b3dc-63f3ce4fba98/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...