/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/eca-rers2012/Problem07_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 09:40:37,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 09:40:37,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 09:40:37,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 09:40:37,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 09:40:37,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 09:40:37,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 09:40:37,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 09:40:37,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 09:40:37,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 09:40:37,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 09:40:37,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 09:40:37,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 09:40:37,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 09:40:37,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 09:40:37,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 09:40:37,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 09:40:37,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 09:40:37,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 09:40:37,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 09:40:37,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 09:40:37,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 09:40:37,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 09:40:37,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 09:40:37,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 09:40:37,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 09:40:37,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 09:40:37,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 09:40:37,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 09:40:37,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 09:40:37,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 09:40:37,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 09:40:37,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 09:40:37,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 09:40:37,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 09:40:37,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 09:40:37,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 09:40:37,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 09:40:37,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 09:40:37,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 09:40:37,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 09:40:37,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 09:40:37,533 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 09:40:37,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 09:40:37,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 09:40:37,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 09:40:37,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 09:40:37,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 09:40:37,535 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 09:40:37,536 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 09:40:37,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 09:40:37,536 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 09:40:37,536 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 09:40:37,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 09:40:37,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 09:40:37,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 09:40:37,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:40:37,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 09:40:37,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 09:40:37,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 09:40:37,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 09:40:37,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 09:40:37,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 09:40:37,752 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 09:40:37,752 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 09:40:37,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label09.c [2023-04-01 09:40:38,787 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 09:40:39,913 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 09:40:39,913 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label09.c [2023-04-01 09:40:40,023 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8c83578/863daab54f6346d18de24b0a3cc71e2b/FLAGe8c09edc8 [2023-04-01 09:40:40,054 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8c83578/863daab54f6346d18de24b0a3cc71e2b [2023-04-01 09:40:40,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 09:40:40,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 09:40:40,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 09:40:40,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 09:40:40,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 09:40:40,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:40:40" (1/1) ... [2023-04-01 09:40:40,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d6e2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:40, skipping insertion in model container [2023-04-01 09:40:40,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:40:40" (1/1) ... [2023-04-01 09:40:40,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 09:40:40,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 09:40:47,195 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label09.c[2768476,2768489] [2023-04-01 09:40:47,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:40:47,269 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 09:40:51,501 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label09.c[2768476,2768489] [2023-04-01 09:40:51,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:40:51,942 INFO L208 MainTranslator]: Completed translation [2023-04-01 09:40:51,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51 WrapperNode [2023-04-01 09:40:51,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 09:40:51,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 09:40:51,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 09:40:51,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 09:40:51,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:51,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:52,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:52,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:53,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:54,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:54,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:54,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:54,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 09:40:54,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 09:40:54,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 09:40:54,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 09:40:54,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (1/1) ... [2023-04-01 09:40:54,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:40:54,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 09:40:54,704 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) [2023-04-01 09:40:54,707 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 [2023-04-01 09:40:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-01 09:40:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-01 09:40:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-01 09:40:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-01 09:40:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-01 09:40:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-01 09:40:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 09:40:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 09:40:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 09:40:54,843 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 09:40:54,845 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 09:41:23,223 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 09:41:24,058 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 09:41:24,058 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 09:41:24,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:41:24 BoogieIcfgContainer [2023-04-01 09:41:24,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 09:41:24,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 09:41:24,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 09:41:24,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 09:41:24,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:40:40" (1/3) ... [2023-04-01 09:41:24,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f8304a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:41:24, skipping insertion in model container [2023-04-01 09:41:24,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:40:51" (2/3) ... [2023-04-01 09:41:24,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f8304a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:41:24, skipping insertion in model container [2023-04-01 09:41:24,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:41:24" (3/3) ... [2023-04-01 09:41:24,073 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label09.c [2023-04-01 09:41:24,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 09:41:24,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 09:41:24,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 09:41:24,226 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@568b96cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 09:41:24,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 09:41:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-01 09:41:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-01 09:41:24,896 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:41:24,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-04-01 09:41:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash -742691617, now seen corresponding path program 1 times [2023-04-01 09:41:24,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:41:24,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668044958] [2023-04-01 09:41:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:41:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:41:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat