/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/loop-lit/gsv2008.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:06:38,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:06:38,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:06:38,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:06:38,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:06:38,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:06:38,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:06:38,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:06:38,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:06:38,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:06:38,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:06:38,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:06:38,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:06:38,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:06:38,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:06:38,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:06:38,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:06:38,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:06:38,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:06:38,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:06:38,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:06:38,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:06:38,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:06:38,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:06:38,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:06:38,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:06:38,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:06:38,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:06:38,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:06:38,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:06:38,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:06:38,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:06:38,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:06:38,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:06:38,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:06:38,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:06:38,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:06:38,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:06:38,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:06:38,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:06:38,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:06:38,945 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 11:06:38,967 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:06:38,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:06:38,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:06:38,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:06:38,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:06:38,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:06:38,969 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:06:38,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:06:38,969 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:06:38,969 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:06:38,970 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:06:38,970 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:06:38,970 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:06:38,970 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:06:38,970 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:06:38,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:06:38,971 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:06:38,971 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:06:38,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:06:38,971 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:06:38,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:06:38,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:06:38,972 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:06:38,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:06:38,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:06:38,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:06:38,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:06:38,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:06:38,973 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:06:38,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:06:38,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:06:38,974 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:06:38,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:06:38,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:06:38,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:06:38,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:06:39,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:06:39,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:06:39,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:06:39,168 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:06:39,168 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:06:39,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2023-04-01 11:06:40,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:06:40,474 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:06:40,474 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2023-04-01 11:06:40,478 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6599065e/cf35d0a99648491eaf5d69cf60ea65a6/FLAGd99af2100 [2023-04-01 11:06:40,489 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6599065e/cf35d0a99648491eaf5d69cf60ea65a6 [2023-04-01 11:06:40,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:06:40,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:06:40,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:06:40,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:06:40,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:06:40,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11656553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40, skipping insertion in model container [2023-04-01 11:06:40,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:06:40,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:06:40,623 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/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2023-04-01 11:06:40,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:06:40,633 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:06:40,646 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/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2023-04-01 11:06:40,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:06:40,655 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:06:40,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40 WrapperNode [2023-04-01 11:06:40,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:06:40,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:06:40,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:06:40,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:06:40,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:06:40,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:06:40,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:06:40,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:06:40,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (1/1) ... [2023-04-01 11:06:40,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:06:40,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:06:40,703 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 11:06:40,711 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 11:06:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:06:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:06:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:06:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 11:06:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:06:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:06:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:06:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:06:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:06:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:06:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:06:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:06:40,788 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:06:40,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:06:40,873 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:06:40,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:06:40,910 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 11:06:40,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:06:40 BoogieIcfgContainer [2023-04-01 11:06:40,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:06:40,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:06:40,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:06:40,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:06:40,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:06:40" (1/3) ... [2023-04-01 11:06:40,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dae1c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:06:40, skipping insertion in model container [2023-04-01 11:06:40,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:06:40" (2/3) ... [2023-04-01 11:06:40,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dae1c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:06:40, skipping insertion in model container [2023-04-01 11:06:40,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:06:40" (3/3) ... [2023-04-01 11:06:40,941 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2023-04-01 11:06:40,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:06:40,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:06:41,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:06:41,008 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;@500ce05c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:06:41,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:06:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 11:06:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-04-01 11:06:41,018 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:06:41,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:06:41,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:06:41,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:06:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash 520820340, now seen corresponding path program 1 times [2023-04-01 11:06:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:06:41,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675585676] [2023-04-01 11:06:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:06:41,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:06:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:06:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:06:41,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:06:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675585676] [2023-04-01 11:06:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675585676] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:06:41,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:06:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 11:06:41,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895280709] [2023-04-01 11:06:41,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:06:41,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 11:06:41,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:06:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 11:06:41,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 11:06:41,346 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:06:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:06:41,410 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-04-01 11:06:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 11:06:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-04-01 11:06:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:06:41,416 INFO L225 Difference]: With dead ends: 32 [2023-04-01 11:06:41,416 INFO L226 Difference]: Without dead ends: 15 [2023-04-01 11:06:41,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-01 11:06:41,423 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:06:41,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:06:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-04-01 11:06:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-04-01 11:06:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:06:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-04-01 11:06:41,445 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2023-04-01 11:06:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:06:41,446 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-04-01 11:06:41,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:06:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-04-01 11:06:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-04-01 11:06:41,447 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:06:41,447 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:06:41,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:06:41,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:06:41,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:06:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2004915113, now seen corresponding path program 1 times [2023-04-01 11:06:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:06:41,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133122209] [2023-04-01 11:06:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:06:41,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:06:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:06:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:06:41,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:06:41,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133122209] [2023-04-01 11:06:41,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133122209] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:06:41,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393256382] [2023-04-01 11:06:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:06:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:06:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:06:41,623 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) [2023-04-01 11:06:41,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:06:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:06:41,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-01 11:06:41,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:06:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:06:41,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:06:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:06:41,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393256382] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-01 11:06:41,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-01 11:06:41,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 10 [2023-04-01 11:06:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934910222] [2023-04-01 11:06:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:06:41,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 11:06:41,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:06:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 11:06:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-01 11:06:41,849 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:06:41,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:06:41,898 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-04-01 11:06:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 11:06:41,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-04-01 11:06:41,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:06:41,899 INFO L225 Difference]: With dead ends: 15 [2023-04-01 11:06:41,899 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 11:06:41,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-04-01 11:06:41,900 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:06:41,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:06:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 11:06:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 11:06:41,901 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) [2023-04-01 11:06:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 11:06:41,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-04-01 11:06:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:06:41,902 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 11:06:41,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:06:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 11:06:41,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 11:06:41,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:06:41,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 11:06:42,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:06:42,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 4) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 6 8) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 71) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 72) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 14 74) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 73) no Hoare annotation was computed. [2023-04-01 11:06:42,119 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 14 74) no Hoare annotation was computed. [2023-04-01 11:06:42,120 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 74) the Hoare annotation is: true [2023-04-01 11:06:42,120 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 66) no Hoare annotation was computed. [2023-04-01 11:06:42,120 INFO L895 garLoopResultBuilder]: At program point L38(lines 33 67) the Hoare annotation is: (or (< main_~main__x~0 0) (< 0 main_~main__y~0)) [2023-04-01 11:06:42,120 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:06:42,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:06:42,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:06:42,120 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 11:06:42,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 11:06:42,120 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:06:42,123 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 11:06:42,124 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:06:42,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:06:42 BoogieIcfgContainer [2023-04-01 11:06:42,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:06:42,132 INFO L158 Benchmark]: Toolchain (without parser) took 1641.08ms. Allocated memory is still 198.2MB. Free memory was 154.7MB in the beginning and 167.4MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:06:42,133 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:06:42,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.66ms. Allocated memory is still 198.2MB. Free memory was 154.2MB in the beginning and 143.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 11:06:42,133 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 198.2MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 11:06:42,133 INFO L158 Benchmark]: RCFGBuilder took 232.90ms. Allocated memory is still 198.2MB. Free memory was 142.1MB in the beginning and 130.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 11:06:42,134 INFO L158 Benchmark]: TraceAbstraction took 1209.14ms. Allocated memory is still 198.2MB. Free memory was 129.5MB in the beginning and 167.4MB in the end (delta: -37.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:06:42,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 161.66ms. Allocated memory is still 198.2MB. Free memory was 154.2MB in the beginning and 143.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 198.2MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 232.90ms. Allocated memory is still 198.2MB. Free memory was 142.1MB in the beginning and 130.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1209.14ms. Allocated memory is still 198.2MB. Free memory was 129.5MB in the beginning and 167.4MB in the end (delta: -37.9MB). There was no memory consumed. 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: 57]: 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 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 23 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 4 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: main__x < 0 || 0 < main__y RESULT: Ultimate proved your program to be correct! [2023-04-01 11:06:42,151 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...