./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/Haystacks-06.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36597d7b6e4e15d0ddc667c8d3f7adfa630047456c5216e84008cdd50b82effa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 14:04:09,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 14:04:09,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 14:04:09,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 14:04:09,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 14:04:09,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 14:04:09,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 14:04:09,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 14:04:09,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 14:04:09,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 14:04:09,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 14:04:09,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 14:04:09,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 14:04:09,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 14:04:09,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 14:04:09,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 14:04:09,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 14:04:09,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 14:04:09,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 14:04:09,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 14:04:09,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 14:04:09,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 14:04:09,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 14:04:09,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 14:04:09,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 14:04:09,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 14:04:09,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 14:04:09,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 14:04:09,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 14:04:09,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 14:04:09,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 14:04:09,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 14:04:09,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 14:04:09,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 14:04:09,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 14:04:09,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 14:04:09,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 14:04:09,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 14:04:09,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 14:04:09,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 14:04:09,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 14:04:09,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 14:04:09,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 14:04:09,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 14:04:09,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 14:04:09,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 14:04:09,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 14:04:09,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 14:04:09,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 14:04:09,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 14:04:09,734 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 14:04:09,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 14:04:09,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 14:04:09,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 14:04:09,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 14:04:09,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 14:04:09,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 14:04:09,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 14:04:09,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 14:04:09,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 14:04:09,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 14:04:09,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 14:04:09,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 14:04:09,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 14:04:09,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 14:04:09,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 14:04:09,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 14:04:09,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 14:04:09,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 14:04:09,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 14:04:09,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 14:04:09,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 14:04:09,740 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 14:04:09,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 14:04:09,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 14:04:09,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 14:04:09,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36597d7b6e4e15d0ddc667c8d3f7adfa630047456c5216e84008cdd50b82effa [2021-12-21 14:04:09,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 14:04:10,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 14:04:10,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 14:04:10,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 14:04:10,007 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 14:04:10,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-06.c [2021-12-21 14:04:10,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a46bfa6f1/d57198f2babb4542b390d0edf42f1f11/FLAGbf53b6fbb [2021-12-21 14:04:10,453 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 14:04:10,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-06.c [2021-12-21 14:04:10,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a46bfa6f1/d57198f2babb4542b390d0edf42f1f11/FLAGbf53b6fbb [2021-12-21 14:04:10,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a46bfa6f1/d57198f2babb4542b390d0edf42f1f11 [2021-12-21 14:04:10,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 14:04:10,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 14:04:10,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 14:04:10,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 14:04:10,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 14:04:10,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:04:10" (1/1) ... [2021-12-21 14:04:10,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632906d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:10, skipping insertion in model container [2021-12-21 14:04:10,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:04:10" (1/1) ... [2021-12-21 14:04:10,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 14:04:10,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 14:04:11,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-06.c[8053,8066] [2021-12-21 14:04:11,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 14:04:11,104 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 14:04:11,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-06.c[8053,8066] [2021-12-21 14:04:11,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 14:04:11,167 INFO L208 MainTranslator]: Completed translation [2021-12-21 14:04:11,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11 WrapperNode [2021-12-21 14:04:11,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 14:04:11,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 14:04:11,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 14:04:11,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 14:04:11,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,232 INFO L137 Inliner]: procedures = 13, calls = 199, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 353 [2021-12-21 14:04:11,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 14:04:11,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 14:04:11,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 14:04:11,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 14:04:11,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 14:04:11,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 14:04:11,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 14:04:11,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 14:04:11,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (1/1) ... [2021-12-21 14:04:11,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 14:04:11,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:04:11,303 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) [2021-12-21 14:04:11,314 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 [2021-12-21 14:04:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 14:04:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 14:04:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 14:04:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 14:04:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-21 14:04:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-21 14:04:11,395 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 14:04:11,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 14:04:11,800 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 14:04:11,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 14:04:11,817 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 14:04:11,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:04:11 BoogieIcfgContainer [2021-12-21 14:04:11,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 14:04:11,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 14:04:11,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 14:04:11,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 14:04:11,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:04:10" (1/3) ... [2021-12-21 14:04:11,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175f95ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:04:11, skipping insertion in model container [2021-12-21 14:04:11,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:04:11" (2/3) ... [2021-12-21 14:04:11,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175f95ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:04:11, skipping insertion in model container [2021-12-21 14:04:11,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:04:11" (3/3) ... [2021-12-21 14:04:11,828 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-06.c [2021-12-21 14:04:11,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 14:04:11,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 14:04:11,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 14:04:11,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 14:04:11,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 14:04:11,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 45 states have internal predecessors, (46), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2021-12-21 14:04:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2021-12-21 14:04:11,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 14:04:11,990 INFO L514 BasicCegarLoop]: trace histogram [192, 192, 192, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:04:11,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:04:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:04:11,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1241961822, now seen corresponding path program 1 times [2021-12-21 14:04:12,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:04:12,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585843690] [2021-12-21 14:04:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:04:12,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:04:12,333 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 14:04:12,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036316615] [2021-12-21 14:04:12,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:04:12,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:04:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:04:12,337 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) [2021-12-21 14:04:12,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 14:05:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:05:10,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 864 conjunts are in the unsatisfiable core [2021-12-21 14:05:10,986 INFO L286 TraceCheckSpWp]: Computing forward predicates...