/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:42:48,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:42:48,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:42:48,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:42:48,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:42:48,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:42:48,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:42:48,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:42:48,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:42:48,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:42:48,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:42:48,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:42:48,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:42:48,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:42:48,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:42:48,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:42:48,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:42:48,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:42:48,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:42:48,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:42:48,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:42:48,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:42:48,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:42:48,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:42:48,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:42:48,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:42:48,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:42:48,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:42:48,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:42:48,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:42:48,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:42:48,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:42:48,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:42:48,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:42:48,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:42:48,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:42:48,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:42:48,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:42:48,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:42:48,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:42:48,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:42:48,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:42:48,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:42:48,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:42:48,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:42:48,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:42:48,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:42:48,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:42:48,579 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:42:48,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:42:48,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:42:48,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:42:48,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:42:48,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:42:48,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:42:48,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:42:48,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:42:48,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:42:48,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:42:48,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:42:48,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:42:48,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:42:48,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:42:48,585 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:42:48,585 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:42:48,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:42:48,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:42:48,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:42:48,836 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:42:48,838 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:42:48,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2022-01-10 14:42:48,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71755c3f/49db3c64c1264691886c32d31bc2ec0e/FLAG450a4607e [2022-01-10 14:42:49,229 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:42:49,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2022-01-10 14:42:49,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71755c3f/49db3c64c1264691886c32d31bc2ec0e/FLAG450a4607e [2022-01-10 14:42:49,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71755c3f/49db3c64c1264691886c32d31bc2ec0e [2022-01-10 14:42:49,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:42:49,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:42:49,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:42:49,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:42:49,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:42:49,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e56d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49, skipping insertion in model container [2022-01-10 14:42:49,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:42:49,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:42:49,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_unwindbound1.c[525,538] [2022-01-10 14:42:49,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:42:49,525 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:42:49,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_unwindbound1.c[525,538] [2022-01-10 14:42:49,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:42:49,580 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:42:49,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49 WrapperNode [2022-01-10 14:42:49,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:42:49,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:42:49,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:42:49,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:42:49,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,630 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 109 [2022-01-10 14:42:49,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:42:49,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:42:49,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:42:49,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:42:49,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:42:49,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:42:49,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:42:49,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:42:49,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (1/1) ... [2022-01-10 14:42:49,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:42:49,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:42:49,708 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) [2022-01-10 14:42:49,714 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 [2022-01-10 14:42:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:42:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:42:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:42:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:42:49,799 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:42:49,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:42:50,826 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:42:50,830 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:42:50,830 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 14:42:50,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:50 BoogieIcfgContainer [2022-01-10 14:42:50,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:42:50,832 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:42:50,832 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:42:50,834 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:42:50,836 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:50" (1/1) ... [2022-01-10 14:42:50,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:42:50 BasicIcfg [2022-01-10 14:42:50,901 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:42:50,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:42:50,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:42:50,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:42:50,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:42:49" (1/4) ... [2022-01-10 14:42:50,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9b1b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:50, skipping insertion in model container [2022-01-10 14:42:50,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:49" (2/4) ... [2022-01-10 14:42:50,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9b1b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:50, skipping insertion in model container [2022-01-10 14:42:50,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:50" (3/4) ... [2022-01-10 14:42:50,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9b1b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:42:50, skipping insertion in model container [2022-01-10 14:42:50,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:42:50" (4/4) ... [2022-01-10 14:42:50,907 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound1.cTransformedIcfg [2022-01-10 14:42:50,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:42:50,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-01-10 14:42:50,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:42:50,944 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 [2022-01-10 14:42:50,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-01-10 14:42:50,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 50 states have internal predecessors, (67), 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) [2022-01-10 14:42:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:42:50,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:50,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:50,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:50,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1572895235, now seen corresponding path program 1 times [2022-01-10 14:42:50,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:50,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420972687] [2022-01-10 14:42:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:50,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:51,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:51,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420972687] [2022-01-10 14:42:51,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420972687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:42:51,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:42:51,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:42:51,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342878713] [2022-01-10 14:42:51,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:42:51,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:42:51,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:42:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:42:51,182 INFO L87 Difference]: Start difference. First operand has 51 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 50 states have internal predecessors, (67), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-01-10 14:42:51,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:51,196 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2022-01-10 14:42:51,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:42:51,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2022-01-10 14:42:51,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:51,202 INFO L225 Difference]: With dead ends: 99 [2022-01-10 14:42:51,203 INFO L226 Difference]: Without dead ends: 47 [2022-01-10 14:42:51,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:42:51,208 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:51,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:42:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-01-10 14:42:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-01-10 14:42:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 46 states have internal predecessors, (51), 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) [2022-01-10 14:42:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-01-10 14:42:51,237 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 9 [2022-01-10 14:42:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:51,238 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-01-10 14:42:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-01-10 14:42:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-01-10 14:42:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 14:42:51,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:51,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:51,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:42:51,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1006660880, now seen corresponding path program 1 times [2022-01-10 14:42:51,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:51,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028354899] [2022-01-10 14:42:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:51,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:51,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:51,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028354899] [2022-01-10 14:42:51,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028354899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:42:51,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:42:51,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:42:51,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560450893] [2022-01-10 14:42:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:42:51,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:42:51,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:42:51,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:42:51,452 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:51,496 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2022-01-10 14:42:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:42:51,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 14:42:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:51,500 INFO L225 Difference]: With dead ends: 89 [2022-01-10 14:42:51,500 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 14:42:51,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:42:51,504 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:51,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:42:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 14:42:51,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 14:42:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.325) internal successors, (53), 48 states have internal predecessors, (53), 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) [2022-01-10 14:42:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-01-10 14:42:51,510 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 10 [2022-01-10 14:42:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:51,510 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-01-10 14:42:51,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-01-10 14:42:51,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 14:42:51,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:51,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:51,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:42:51,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:51,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1107699669, now seen corresponding path program 1 times [2022-01-10 14:42:51,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:51,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428296087] [2022-01-10 14:42:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:51,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:51,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:51,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428296087] [2022-01-10 14:42:51,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428296087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:42:51,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:42:51,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:42:51,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314799887] [2022-01-10 14:42:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:42:51,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 14:42:51,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:51,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 14:42:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:42:51,766 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:51,881 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2022-01-10 14:42:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:42:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 14:42:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:51,883 INFO L225 Difference]: With dead ends: 93 [2022-01-10 14:42:51,883 INFO L226 Difference]: Without dead ends: 53 [2022-01-10 14:42:51,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:42:51,885 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:51,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 226 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:42:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-01-10 14:42:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2022-01-10 14:42:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 51 states have internal predecessors, (57), 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) [2022-01-10 14:42:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-01-10 14:42:51,890 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 11 [2022-01-10 14:42:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:51,891 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-01-10 14:42:51,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-01-10 14:42:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 14:42:51,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:51,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:51,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:42:51,892 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 21012068, now seen corresponding path program 1 times [2022-01-10 14:42:51,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:51,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951064961] [2022-01-10 14:42:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:51,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:51,920 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:42:51,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277758767] [2022-01-10 14:42:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:51,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:51,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:42:51,931 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) [2022-01-10 14:42:51,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:42:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:52,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 14:42:52,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:42:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:52,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:42:52,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:52,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951064961] [2022-01-10 14:42:52,209 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:42:52,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277758767] [2022-01-10 14:42:52,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277758767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:42:52,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:42:52,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:42:52,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691539916] [2022-01-10 14:42:52,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:42:52,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:42:52,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:52,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:42:52,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:42:52,215 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:52,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:52,671 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2022-01-10 14:42:52,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 14:42:52,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 14:42:52,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:52,674 INFO L225 Difference]: With dead ends: 92 [2022-01-10 14:42:52,674 INFO L226 Difference]: Without dead ends: 82 [2022-01-10 14:42:52,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:42:52,675 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 36 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:52,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 93 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 14:42:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-01-10 14:42:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2022-01-10 14:42:52,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 70 states have internal predecessors, (82), 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) [2022-01-10 14:42:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2022-01-10 14:42:52,683 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 12 [2022-01-10 14:42:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:52,686 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2022-01-10 14:42:52,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2022-01-10 14:42:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 14:42:52,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:52,690 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:52,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:42:52,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:52,896 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1478756783, now seen corresponding path program 1 times [2022-01-10 14:42:52,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:52,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777387928] [2022-01-10 14:42:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:52,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:53,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:53,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777387928] [2022-01-10 14:42:53,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777387928] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:42:53,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813312684] [2022-01-10 14:42:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:53,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:53,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:42:53,156 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) [2022-01-10 14:42:53,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 14:42:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:53,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 14:42:53,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:42:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:54,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:42:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:54,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813312684] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:42:54,851 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:42:54,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-01-10 14:42:54,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389745141] [2022-01-10 14:42:54,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:42:54,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 14:42:54,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:54,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 14:42:54,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-01-10 14:42:54,854 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:57,190 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2022-01-10 14:42:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 14:42:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 14:42:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:57,191 INFO L225 Difference]: With dead ends: 87 [2022-01-10 14:42:57,191 INFO L226 Difference]: Without dead ends: 25 [2022-01-10 14:42:57,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2022-01-10 14:42:57,193 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:57,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 34 Invalid, 0 Unknown, 7 Unchecked, 0.3s Time] [2022-01-10 14:42:57,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-10 14:42:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2022-01-10 14:42:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-01-10 14:42:57,196 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2022-01-10 14:42:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:57,197 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-01-10 14:42:57,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-01-10 14:42:57,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 14:42:57,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:42:57,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:42:57,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 14:42:57,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:57,398 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-01-10 14:42:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:42:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1282201655, now seen corresponding path program 1 times [2022-01-10 14:42:57,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:42:57,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807084175] [2022-01-10 14:42:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:57,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:42:57,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:42:57,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089101402] [2022-01-10 14:42:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:42:57,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:57,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:42:57,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:42:57,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 14:42:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:42:57,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 14:42:57,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:42:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:42:57,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:42:57,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:42:57,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807084175] [2022-01-10 14:42:57,623 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:42:57,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089101402] [2022-01-10 14:42:57,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089101402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:42:57,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:42:57,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:42:57,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760691590] [2022-01-10 14:42:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:42:57,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:42:57,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:42:57,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:42:57,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:42:57,625 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:42:57,669 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-01-10 14:42:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:42:57,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-10 14:42:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:42:57,669 INFO L225 Difference]: With dead ends: 17 [2022-01-10 14:42:57,669 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 14:42:57,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:42:57,671 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:42:57,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:42:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 14:42:57,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 14:42:57,672 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) [2022-01-10 14:42:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 14:42:57,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-01-10 14:42:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:42:57,672 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 14:42:57,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:42:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 14:42:57,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2022-01-10 14:42:57,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-01-10 14:42:57,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-01-10 14:42:57,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-01-10 14:42:57,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-01-10 14:42:57,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 14:42:57,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:42:57,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 14:42:58,051 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L854 garLoopResultBuilder]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (<= 0 ~counter~0Int)) (.cse1 (= |ULTIMATE.start_ULTIMATE.start_main_~h~0#1Int| 0)) (.cse2 (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int|)) (.cse3 (= |ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 0))) (or (and .cse0 (<= ~counter~0Int 0) .cse1 .cse2 .cse3) (and .cse0 (< ~counter~0Int 4294967296) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) .cse1 .cse2 .cse3))) [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 56) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-01-10 14:42:58,052 INFO L858 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L854 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~h~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 0)) [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L854 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,053 INFO L858 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L854 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~h~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 0)) [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L854 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L861 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2022-01-10 14:42:58,054 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,054 INFO L854 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L861 garLoopResultBuilder]: At program point L60(lines 20 61) the Hoare annotation is: true [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L854 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,055 INFO L858 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L854 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L854 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: false [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2022-01-10 14:42:58,056 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2022-01-10 14:42:58,059 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 14:42:58,060 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 14:42:58,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:42:58 BasicIcfg [2022-01-10 14:42:58,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 14:42:58,077 INFO L158 Benchmark]: Toolchain (without parser) took 8815.10ms. Allocated memory was 177.2MB in the beginning and 265.3MB in the end (delta: 88.1MB). Free memory was 122.5MB in the beginning and 113.1MB in the end (delta: 9.4MB). Peak memory consumption was 98.9MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,078 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 14:42:58,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 177.2MB. Free memory was 122.4MB in the beginning and 147.2MB in the end (delta: -24.7MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.00ms. Allocated memory is still 177.2MB. Free memory was 146.7MB in the beginning and 145.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,079 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 177.2MB. Free memory was 145.1MB in the beginning and 143.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,079 INFO L158 Benchmark]: RCFGBuilder took 1165.09ms. Allocated memory is still 177.2MB. Free memory was 143.5MB in the beginning and 129.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,079 INFO L158 Benchmark]: IcfgTransformer took 68.63ms. Allocated memory is still 177.2MB. Free memory was 129.9MB in the beginning and 124.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,079 INFO L158 Benchmark]: TraceAbstraction took 7175.02ms. Allocated memory was 177.2MB in the beginning and 265.3MB in the end (delta: 88.1MB). Free memory was 124.1MB in the beginning and 113.1MB in the end (delta: 11.0MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. [2022-01-10 14:42:58,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 177.2MB. Free memory was 122.4MB in the beginning and 147.2MB in the end (delta: -24.7MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.00ms. Allocated memory is still 177.2MB. Free memory was 146.7MB in the beginning and 145.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 177.2MB. Free memory was 145.1MB in the beginning and 143.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 1165.09ms. Allocated memory is still 177.2MB. Free memory was 143.5MB in the beginning and 129.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * IcfgTransformer took 68.63ms. Allocated memory is still 177.2MB. Free memory was 129.9MB in the beginning and 124.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 7175.02ms. Allocated memory was 177.2MB in the beginning and 265.3MB in the end (delta: 88.1MB). Free memory was 124.1MB in the beginning and 113.1MB in the end (delta: 11.0MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. * 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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, 51 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 606 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 213 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 77 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 83 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 2 QuantifiedInterpolants, 997 SizeOfPredicates, 10 NumberOfNonLiveVariables, 404 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/6 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 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (~bvule32(1bv32, cond) && p == 0bv32) && h == 0bv32 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((~bvule32(1bv32, cond) && r == n) && p == 0bv32) && h == 0bv32 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((~bvule32(0bv32, counter) && ~bvule32(counter, 0bv32)) && r == n) && p == 0bv32) && h == 0bv32) || (((((~bvsle33((if !(0bv33 == ~bvurem33(~bvadd16(8589934591bv33, ~zero_extendFrom32To64(counter)), 4294967296bv33)) then (if ~bvadd16(8589934591bv33, ~zero_extendFrom32To64(counter))[32:32] == 1bv1 then ~bvadd16(~bvsdiv64(~bvadd16(8589934591bv33, ~zero_extendFrom32To64(counter)), 4294967296bv33), 1bv33) else ~bvsdiv64(~bvadd16(8589934591bv33, ~zero_extendFrom32To64(counter)), 4294967296bv33)) else ~bvsdiv64(~bvadd16(8589934591bv33, ~zero_extendFrom32To64(counter)), 4294967296bv33)), ~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(counter))), 1bv65)[64:32]) && ~bvule32(0bv32, counter)) && r == n) && ~bvult64(~zero_extendFrom32To64(counter), 4294967296bv33)) && p == 0bv32) && h == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-10 14:42:58,119 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...