/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 OctagonDomain -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 23:02:11,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 23:02:11,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 23:02:12,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 23:02:12,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 23:02:12,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 23:02:12,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 23:02:12,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 23:02:12,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 23:02:12,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 23:02:12,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 23:02:12,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 23:02:12,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 23:02:12,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 23:02:12,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 23:02:12,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 23:02:12,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 23:02:12,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 23:02:12,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 23:02:12,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 23:02:12,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 23:02:12,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 23:02:12,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 23:02:12,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 23:02:12,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 23:02:12,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 23:02:12,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 23:02:12,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 23:02:12,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 23:02:12,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 23:02:12,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 23:02:12,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 23:02:12,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 23:02:12,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 23:02:12,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 23:02:12,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 23:02:12,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 23:02:12,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 23:02:12,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 23:02:12,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 23:02:12,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 23:02:12,086 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 [2023-04-02 23:02:12,116 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 23:02:12,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 23:02:12,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 23:02:12,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 23:02:12,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 23:02:12,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 23:02:12,118 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 23:02:12,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 23:02:12,118 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 23:02:12,118 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 23:02:12,119 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 23:02:12,119 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 23:02:12,120 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 23:02:12,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 23:02:12,120 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 23:02:12,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 23:02:12,121 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 23:02:12,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 23:02:12,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 23:02:12,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 23:02:12,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 23:02:12,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 23:02:12,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 23:02:12,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 23:02:12,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 23:02:12,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 23:02:12,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 23:02:12,394 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 23:02:12,395 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 23:02:12,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound10.c [2023-04-02 23:02:13,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 23:02:13,713 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 23:02:13,714 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound10.c [2023-04-02 23:02:13,719 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c0dbb88/66d05a71ed0d40fa8b11cc2fb8c9402a/FLAG53a51ccfc [2023-04-02 23:02:13,731 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c0dbb88/66d05a71ed0d40fa8b11cc2fb8c9402a [2023-04-02 23:02:13,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 23:02:13,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 23:02:13,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 23:02:13,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 23:02:13,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 23:02:13,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b559ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13, skipping insertion in model container [2023-04-02 23:02:13,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 23:02:13,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 23:02:13,866 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/nla-digbench-scaling/geo3-ll_valuebound10.c[525,538] [2023-04-02 23:02:13,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 23:02:13,888 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 23:02:13,899 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/nla-digbench-scaling/geo3-ll_valuebound10.c[525,538] [2023-04-02 23:02:13,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 23:02:13,928 INFO L208 MainTranslator]: Completed translation [2023-04-02 23:02:13,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13 WrapperNode [2023-04-02 23:02:13,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 23:02:13,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 23:02:13,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 23:02:13,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 23:02:13,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 23:02:13,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 23:02:13,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 23:02:13,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 23:02:13,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (1/1) ... [2023-04-02 23:02:13,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 23:02:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 23:02:14,006 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) [2023-04-02 23:02:14,025 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 [2023-04-02 23:02:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 23:02:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 23:02:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 23:02:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 23:02:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-02 23:02:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 23:02:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 23:02:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 23:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 23:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 23:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 23:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 23:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 23:02:14,112 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 23:02:14,114 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 23:02:14,289 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 23:02:14,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 23:02:14,322 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 23:02:14,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 11:02:14 BoogieIcfgContainer [2023-04-02 23:02:14,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 23:02:14,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 23:02:14,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 23:02:14,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 23:02:14,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 11:02:13" (1/3) ... [2023-04-02 23:02:14,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58eb4eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 11:02:14, skipping insertion in model container [2023-04-02 23:02:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 11:02:13" (2/3) ... [2023-04-02 23:02:14,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58eb4eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 11:02:14, skipping insertion in model container [2023-04-02 23:02:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 11:02:14" (3/3) ... [2023-04-02 23:02:14,348 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound10.c [2023-04-02 23:02:14,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 23:02:14,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 23:02:14,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 23:02:14,429 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;@12f4c02c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 23:02:14,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 23:02:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-02 23:02:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 23:02:14,440 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 23:02:14,440 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 23:02:14,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 23:02:14,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 23:02:14,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2114771114, now seen corresponding path program 1 times [2023-04-02 23:02:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 23:02:14,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497451377] [2023-04-02 23:02:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 23:02:14,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 23:02:14,591 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 23:02:14,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041530967] [2023-04-02 23:02:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 23:02:14,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 23:02:14,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 23:02:14,596 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) [2023-04-02 23:02:14,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 23:02:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 23:02:14,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 23:02:14,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 23:02:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 23:02:14,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 23:02:14,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 23:02:14,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497451377] [2023-04-02 23:02:14,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 23:02:14,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041530967] [2023-04-02 23:02:14,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041530967] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 23:02:14,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 23:02:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 23:02:14,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456834500] [2023-04-02 23:02:14,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 23:02:14,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 23:02:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 23:02:14,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 23:02:14,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 23:02:14,950 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 23:02:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 23:02:15,089 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2023-04-02 23:02:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 23:02:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2023-04-02 23:02:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 23:02:15,100 INFO L225 Difference]: With dead ends: 51 [2023-04-02 23:02:15,100 INFO L226 Difference]: Without dead ends: 30 [2023-04-02 23:02:15,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 23:02:15,109 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 23:02:15,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 81 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 23:02:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-04-02 23:02:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-04-02 23:02:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-02 23:02:15,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-04-02 23:02:15,151 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2023-04-02 23:02:15,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 23:02:15,152 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-04-02 23:02:15,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 23:02:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-04-02 23:02:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-02 23:02:15,154 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 23:02:15,154 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 23:02:15,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 23:02:15,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-04-02 23:02:15,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 23:02:15,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 23:02:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash -400381422, now seen corresponding path program 1 times [2023-04-02 23:02:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 23:02:15,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614239907] [2023-04-02 23:02:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 23:02:15,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 23:02:15,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-02 23:02:15,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786154828] [2023-04-02 23:02:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 23:02:15,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 23:02:15,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 23:02:15,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 23:02:15,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 23:02:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 23:02:15,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2023-04-02 23:02:15,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 23:02:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 23:02:15,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 23:02:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 23:02:15,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 23:02:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614239907] [2023-04-02 23:02:15,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-02 23:02:15,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786154828] [2023-04-02 23:02:15,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786154828] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 23:02:15,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [586547531] [2023-04-02 23:02:15,926 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-04-02 23:02:15,926 INFO L166 IcfgInterpreter]: Building call graph [2023-04-02 23:02:15,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-02 23:02:15,934 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-02 23:02:15,935 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-02 23:02:16,010 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 9 for LOIs [2023-04-02 23:02:17,049 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 49 for LOIs [2023-04-02 23:02:17,104 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 9 for LOIs [2023-04-02 23:02:17,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-02 23:02:17,110 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-02 23:02:18,147 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '400#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (= |#NULL.base| 0))' at error location [2023-04-02 23:02:18,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-02 23:02:18,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 23:02:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-04-02 23:02:18,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426489277] [2023-04-02 23:02:18,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 23:02:18,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 23:02:18,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 23:02:18,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 23:02:18,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2023-04-02 23:02:18,150 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 23:02:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 23:02:18,581 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-04-02 23:02:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 23:02:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2023-04-02 23:02:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 23:02:18,582 INFO L225 Difference]: With dead ends: 34 [2023-04-02 23:02:18,582 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 23:02:18,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2023-04-02 23:02:18,584 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 23:02:18,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 113 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 23:02:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 23:02:18,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 23:02:18,585 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) [2023-04-02 23:02:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 23:02:18,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-04-02 23:02:18,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 23:02:18,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 23:02:18,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 23:02:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 23:02:18,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 23:02:18,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 23:02:18,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 23:02:18,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-04-02 23:02:18,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 23:02:19,051 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 8) no Hoare annotation was computed. [2023-04-02 23:02:19,051 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 8) no Hoare annotation was computed. [2023-04-02 23:02:19,051 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-04-02 23:02:19,051 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L902 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2023-04-02 23:02:19,052 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2023-04-02 23:02:19,052 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true [2023-04-02 23:02:19,052 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 21 48) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-04-02 23:02:19,052 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 21 48) the Hoare annotation is: true [2023-04-02 23:02:19,052 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 45) the Hoare annotation is: (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)) [2023-04-02 23:02:19,052 INFO L895 garLoopResultBuilder]: At program point L36-3(lines 36 45) the Hoare annotation is: (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)) [2023-04-02 23:02:19,053 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)) [2023-04-02 23:02:19,053 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 36 45) no Hoare annotation was computed. [2023-04-02 23:02:19,053 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 23:02:19,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 23:02:19,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 23:02:19,053 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-02 23:02:19,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 23:02:19,053 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 23:02:19,053 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2023-04-02 23:02:19,054 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-04-02 23:02:19,054 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-04-02 23:02:19,054 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-04-02 23:02:19,054 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-04-02 23:02:19,054 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2023-04-02 23:02:19,056 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 23:02:19,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 23:02:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 11:02:19 BoogieIcfgContainer [2023-04-02 23:02:19,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 23:02:19,069 INFO L158 Benchmark]: Toolchain (without parser) took 5334.60ms. Allocated memory was 296.7MB in the beginning and 357.6MB in the end (delta: 60.8MB). Free memory was 248.9MB in the beginning and 284.4MB in the end (delta: -35.5MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2023-04-02 23:02:19,070 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 23:02:19,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.29ms. Allocated memory is still 296.7MB. Free memory was 248.9MB in the beginning and 238.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-02 23:02:19,070 INFO L158 Benchmark]: Boogie Preprocessor took 38.16ms. Allocated memory is still 296.7MB. Free memory was 238.5MB in the beginning and 237.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-02 23:02:19,070 INFO L158 Benchmark]: RCFGBuilder took 355.66ms. Allocated memory is still 296.7MB. Free memory was 236.9MB in the beginning and 224.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 23:02:19,071 INFO L158 Benchmark]: TraceAbstraction took 4726.43ms. Allocated memory was 296.7MB in the beginning and 357.6MB in the end (delta: 60.8MB). Free memory was 224.3MB in the beginning and 284.4MB in the end (delta: -60.1MB). Peak memory consumption was 1.1MB. Max. memory is 8.0GB. [2023-04-02 23:02:19,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.29ms. Allocated memory is still 296.7MB. Free memory was 248.9MB in the beginning and 238.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.16ms. Allocated memory is still 296.7MB. Free memory was 238.5MB in the beginning and 237.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 355.66ms. Allocated memory is still 296.7MB. Free memory was 236.9MB in the beginning and 224.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4726.43ms. Allocated memory was 296.7MB in the beginning and 357.6MB in the end (delta: 60.8MB). Free memory was 224.3MB in the beginning and 284.4MB in the end (delta: -60.1MB). Peak memory consumption was 1.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: 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 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 39 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=1, InterpolantAutomatonStates: 13, 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, 12 LocationsWithAnnotation, 21 PreInvPairs, 30 NumberOfFragments, 42 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 5 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 22/26 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: 36]: Loop Invariant Derived loop invariant: y * az + x == z * x + a RESULT: Ultimate proved your program to be correct! [2023-04-02 23:02:19,092 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...