./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/jain_7-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.2-?-3598765 [2022-07-20 22:24:51,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:24:51,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:24:51,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:24:51,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:24:51,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:24:51,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:24:51,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:24:51,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:24:51,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:24:51,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:24:51,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:24:51,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:24:51,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:24:51,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:24:51,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:24:51,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:24:51,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:24:51,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:24:51,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:24:51,602 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:24:51,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:24:51,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:24:51,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:24:51,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:24:51,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:24:51,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:24:51,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:24:51,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:24:51,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:24:51,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:24:51,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:24:51,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:24:51,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:24:51,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:24:51,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:24:51,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:24:51,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:24:51,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:24:51,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:24:51,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:24:51,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:24:51,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:24:51,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:24:51,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:24:51,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:24:51,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:24:51,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:24:51,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:24:51,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:24:51,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:24:51,637 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:24:51,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:24:51,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:24:51,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:24:51,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:24:51,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:24:51,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:24:51,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:24:51,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:24:51,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:24:51,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:24:51,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:24:51,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:24:51,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:24:51,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:24:51,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:24:51,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:24:51,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:24:51,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:24:51,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:24:51,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:24:51,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:24:51,644 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:24:51,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:24:51,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:24:51,645 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec757148a991f4b3d1dfc96ef4137399e4a0f35295201340aed6c25a7180c165 [2022-07-20 22:24:51,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:24:51,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:24:51,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:24:51,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:24:51,942 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:24:51,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_7-2.c [2022-07-20 22:24:52,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b412d7443/2578e0af9c4647d5ab5b9217bb04b9b8/FLAG0bef22b29 [2022-07-20 22:24:52,402 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:24:52,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c [2022-07-20 22:24:52,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b412d7443/2578e0af9c4647d5ab5b9217bb04b9b8/FLAG0bef22b29 [2022-07-20 22:24:52,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b412d7443/2578e0af9c4647d5ab5b9217bb04b9b8 [2022-07-20 22:24:52,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:24:52,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:24:52,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:24:52,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:24:52,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:24:52,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:24:52" (1/1) ... [2022-07-20 22:24:52,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f36c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:52, skipping insertion in model container [2022-07-20 22:24:52,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:24:52" (1/1) ... [2022-07-20 22:24:52,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:24:52,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:24:53,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c[675,688] [2022-07-20 22:24:53,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:24:53,069 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:24:53,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c[675,688] [2022-07-20 22:24:53,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:24:53,094 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:24:53,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53 WrapperNode [2022-07-20 22:24:53,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:24:53,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:24:53,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:24:53,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:24:53,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,123 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-20 22:24:53,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:24:53,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:24:53,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:24:53,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:24:53,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:24:53,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:24:53,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:24:53,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:24:53,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (1/1) ... [2022-07-20 22:24:53,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:24:53,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:24:53,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 22:24:53,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 22:24:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:24:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:24:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:24:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:24:53,284 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:24:53,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:24:53,362 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:24:53,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:24:53,371 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:24:53,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:24:53 BoogieIcfgContainer [2022-07-20 22:24:53,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:24:53,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:24:53,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:24:53,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:24:53,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:24:52" (1/3) ... [2022-07-20 22:24:53,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5192c6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:24:53, skipping insertion in model container [2022-07-20 22:24:53,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:24:53" (2/3) ... [2022-07-20 22:24:53,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5192c6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:24:53, skipping insertion in model container [2022-07-20 22:24:53,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:24:53" (3/3) ... [2022-07-20 22:24:53,382 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2022-07-20 22:24:53,394 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:24:53,395 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:24:53,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:24:53,458 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70ecf33b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@243685a5 [2022-07-20 22:24:53,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:24:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2022-07-20 22:24:53,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-20 22:24:53,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:24:53,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-20 22:24:53,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:24:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:24:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2022-07-20 22:24:53,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:24:53,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635080811] [2022-07-20 22:24:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:24:53,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:24:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:24:53,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:24:53,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:24:53,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635080811] [2022-07-20 22:24:53,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635080811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:24:53,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:24:53,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:24:53,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817614280] [2022-07-20 22:24:53,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:24:53,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:24:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:24:53,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:24:53,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:24:53,709 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) 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) [2022-07-20 22:24:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:24:53,733 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-07-20 22:24:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:24:53,735 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 [2022-07-20 22:24:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:24:53,740 INFO L225 Difference]: With dead ends: 18 [2022-07-20 22:24:53,740 INFO L226 Difference]: Without dead ends: 9 [2022-07-20 22:24:53,742 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:24:53,745 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:24:53,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 22:24:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-20 22:24:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-20 22:24:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-07-20 22:24:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-20 22:24:53,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-07-20 22:24:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:24:53,770 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-20 22:24:53,770 INFO L496 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) [2022-07-20 22:24:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-20 22:24:53,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-20 22:24:53,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:24:53,771 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-07-20 22:24:53,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:24:53,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:24:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:24:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2022-07-20 22:24:53,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:24:53,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409065686] [2022-07-20 22:24:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:24:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:24:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:24:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:24:53,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:24:53,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409065686] [2022-07-20 22:24:53,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409065686] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:24:53,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920083568] [2022-07-20 22:24:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:24:53,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:24:53,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:24:53,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:24:53,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 22:24:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:24:54,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-20 22:24:54,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:24:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:24:56,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 22:25:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:25:00,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920083568] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 22:25:00,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 22:25:00,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-20 22:25:00,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708473109] [2022-07-20 22:25:00,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 22:25:00,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 22:25:00,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:25:00,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 22:25:00,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=45, Unknown=3, NotChecked=0, Total=72 [2022-07-20 22:25:00,625 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:25:08,668 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 22:25:10,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-20 22:25:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:25:12,725 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-07-20 22:25:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 22:25:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-20 22:25:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:25:12,727 INFO L225 Difference]: With dead ends: 19 [2022-07-20 22:25:12,727 INFO L226 Difference]: Without dead ends: 17 [2022-07-20 22:25:12,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=38, Invalid=68, Unknown=4, NotChecked=0, Total=110 [2022-07-20 22:25:12,729 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:25:12,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 1 Unknown, 10 Unchecked, 2.0s Time] [2022-07-20 22:25:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-20 22:25:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-07-20 22:25:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:25:12,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-20 22:25:12,737 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-07-20 22:25:12,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:25:12,738 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-20 22:25:12,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:25:12,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-20 22:25:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-20 22:25:12,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:25:12,739 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-07-20 22:25:12,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-20 22:25:12,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:25:12,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:25:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:25:12,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1259862306, now seen corresponding path program 2 times [2022-07-20 22:25:12,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:25:12,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26896942] [2022-07-20 22:25:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:25:12,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:25:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:25:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-20 22:25:13,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:25:13,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26896942] [2022-07-20 22:25:13,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26896942] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:25:13,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451670607] [2022-07-20 22:25:13,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 22:25:13,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:25:13,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:25:13,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:25:13,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 22:25:16,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 22:25:16,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 22:25:16,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-20 22:25:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:25:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-20 22:25:18,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 22:25:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 12 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:25:43,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451670607] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 22:25:43,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 22:25:43,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7] total 11 [2022-07-20 22:25:43,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887997790] [2022-07-20 22:25:43,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 22:25:43,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 22:25:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:25:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 22:25:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=63, Unknown=13, NotChecked=0, Total=110 [2022-07-20 22:25:43,369 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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) [2022-07-20 22:25:50,092 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 32 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 22:25:50,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:25:50,104 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-07-20 22:25:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:25:50,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-20 22:25:50,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:25:50,105 INFO L225 Difference]: With dead ends: 15 [2022-07-20 22:25:50,105 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 22:25:50,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=44, Invalid=75, Unknown=13, NotChecked=0, Total=132 [2022-07-20 22:25:50,106 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:25:50,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-20 22:25:50,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 22:25:50,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 22:25:50,108 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) [2022-07-20 22:25:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 22:25:50,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-07-20 22:25:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:25:50,108 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 22:25:50,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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) [2022-07-20 22:25:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 22:25:50,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 22:25:50,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:25:50,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 22:25:50,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-20 22:25:50,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 22:25:50,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 22:25:50,421 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-07-20 22:25:50,421 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: (and (= (mod |ULTIMATE.start_main_~z~0#1| 4194304) 0) (let ((.cse0 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 (+ (* 4194304 (div (+ .cse0 (* (- 1) |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| (- 4))) 4194304)) |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| 4)))) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod |ULTIMATE.start_main_~y~0#1| 2097152) 0)) [2022-07-20 22:25:50,422 INFO L895 garLoopResultBuilder]: At program point L36(lines 20 37) the Hoare annotation is: false [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 22:25:50,422 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 35) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~z~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0)) (and (= (mod |ULTIMATE.start_main_~z~0#1| 4194304) 0) (let ((.cse0 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 (+ (* 4194304 (div (+ .cse0 (* (- 1) |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| (- 4))) 4194304)) |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| 4)))) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod |ULTIMATE.start_main_~y~0#1| 2097152) 0))) [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 35) no Hoare annotation was computed. [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-07-20 22:25:50,422 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-07-20 22:25:50,428 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1] [2022-07-20 22:25:50,430 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:25:50,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:25:50 BoogieIcfgContainer [2022-07-20 22:25:50,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:25:50,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:25:50,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:25:50,447 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:25:50,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:24:53" (3/4) ... [2022-07-20 22:25:50,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 22:25:50,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-20 22:25:50,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 22:25:50,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 22:25:50,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 22:25:50,485 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:25:50,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:25:50,487 INFO L158 Benchmark]: Toolchain (without parser) took 57655.62ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 61.7MB in the beginning and 87.7MB in the end (delta: -26.0MB). Peak memory consumption was 2.5kB. Max. memory is 16.1GB. [2022-07-20 22:25:50,489 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:25:50,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.42ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 75.0MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 22:25:50,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.61ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:25:50,491 INFO L158 Benchmark]: Boogie Preprocessor took 24.35ms. Allocated memory is still 98.6MB. Free memory was 73.4MB in the beginning and 72.5MB in the end (delta: 873.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:25:50,492 INFO L158 Benchmark]: RCFGBuilder took 223.98ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 64.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 22:25:50,492 INFO L158 Benchmark]: TraceAbstraction took 57071.14ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.6MB in the beginning and 89.7MB in the end (delta: -26.1MB). Peak memory consumption was 361.6kB. Max. memory is 16.1GB. [2022-07-20 22:25:50,493 INFO L158 Benchmark]: Witness Printer took 39.98ms. Allocated memory is still 123.7MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:25:50,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.42ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 75.0MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.61ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.35ms. Allocated memory is still 98.6MB. Free memory was 73.4MB in the beginning and 72.5MB in the end (delta: 873.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 223.98ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 64.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 57071.14ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.6MB in the beginning and 89.7MB in the end (delta: -26.1MB). Peak memory consumption was 361.6kB. Max. memory is 16.1GB. * Witness Printer took 39.98ms. Allocated memory is still 123.7MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.0s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 15 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 14 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 49.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 86 HoareAnnotationTreeSize, 3 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 223 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 33.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 1025 SizeOfPredicates, 26 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/51 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: 28]: Loop Invariant Derived loop invariant: ((y == 0 && z == 0) && x == 0) || (((z % 4194304 == 0 && 2 * y <= 4194304 * ((2 * y + -1 * z + x * -4) / 4194304) + z + x * 4) && 1 <= cond) && y % 2097152 == 0) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((z % 4194304 == 0 && 2 * y <= 4194304 * ((2 * y + -1 * z + x * -4) / 4194304) + z + x * 4) && 1 <= cond) && y % 2097152 == 0 RESULT: Ultimate proved your program to be correct! [2022-07-20 22:25:50,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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