/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 IntervalDomain -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:19:51,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:19:51,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:19:51,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:19:51,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:19:51,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:19:51,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:19:51,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:19:51,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:19:51,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:19:51,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:19:51,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:19:51,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:19:51,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:19:51,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:19:51,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:19:51,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:19:51,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:19:51,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:19:51,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:19:51,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:19:51,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:19:51,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:19:51,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:19:51,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 23:19:51,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:19:51,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:19:51,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:19:51,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:19:51,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:19:51,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:19:51,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:19:51,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:19:51,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:19:51,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:19:51,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:19:51,861 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 [2023-03-31 23:19:51,882 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:19:51,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:19:51,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:19:51,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:19:51,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:19:51,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:19:51,884 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:19:51,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:19:51,884 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:19:51,884 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:19:51,885 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:19:51,885 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:19:51,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:19:51,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:19:51,887 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:19:51,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:19:51,887 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:19:51,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:19:51,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:19:51,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:19:51,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:19:51,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:19:51,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:19:51,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:19:52,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:19:52,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:19:52,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:19:52,121 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:19:52,129 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:19:52,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-03-31 23:19:53,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:19:53,492 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:19:53,492 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-03-31 23:19:53,502 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dacb1f41a/ae2d5a17a0eb4d92aeb2f2f19ac3479e/FLAGb847f61bb [2023-03-31 23:19:53,523 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dacb1f41a/ae2d5a17a0eb4d92aeb2f2f19ac3479e [2023-03-31 23:19:53,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:19:53,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:19:53,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:19:53,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:19:53,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:19:53,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb88e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53, skipping insertion in model container [2023-03-31 23:19:53,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:19:53,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:19:53,692 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_valuebound50.c[525,538] [2023-03-31 23:19:53,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:19:53,719 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:19:53,737 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_valuebound50.c[525,538] [2023-03-31 23:19:53,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:19:53,764 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:19:53,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53 WrapperNode [2023-03-31 23:19:53,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:19:53,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:19:53,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:19:53,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:19:53,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:19:53,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:19:53,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:19:53,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:19:53,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (1/1) ... [2023-03-31 23:19:53,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:19:53,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:19:53,849 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) [2023-03-31 23:19:53,851 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 [2023-03-31 23:19:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:19:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:19:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:19:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 23:19:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 23:19:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:19:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:19:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:19:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:19:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:19:53,973 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:19:53,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:19:54,156 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:19:54,198 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:19:54,198 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 23:19:54,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:19:54 BoogieIcfgContainer [2023-03-31 23:19:54,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:19:54,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:19:54,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:19:54,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:19:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:19:53" (1/3) ... [2023-03-31 23:19:54,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ce2119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:19:54, skipping insertion in model container [2023-03-31 23:19:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:19:53" (2/3) ... [2023-03-31 23:19:54,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ce2119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:19:54, skipping insertion in model container [2023-03-31 23:19:54,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:19:54" (3/3) ... [2023-03-31 23:19:54,226 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound50.c [2023-03-31 23:19:54,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:19:54,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:19:54,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:19:54,397 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;@370fa9ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:19:54,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:19:54,400 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) [2023-03-31 23:19:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-03-31 23:19:54,406 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:19:54,406 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] [2023-03-31 23:19:54,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:19:54,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:19:54,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2114771114, now seen corresponding path program 1 times [2023-03-31 23:19:54,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:19:54,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070605588] [2023-03-31 23:19:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:19:54,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:19:54,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:19:54,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854952764] [2023-03-31 23:19:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:19:54,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:19:54,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:19:54,496 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) [2023-03-31 23:19:54,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:19:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:19:54,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjunts are in the unsatisfiable core [2023-03-31 23:19:54,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:19:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:19:54,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:19:54,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:19:54,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070605588] [2023-03-31 23:19:54,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-31 23:19:54,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854952764] [2023-03-31 23:19:54,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854952764] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:19:54,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:19:54,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:19:54,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796295074] [2023-03-31 23:19:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:19:54,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:19:54,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:19:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:19:54,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:19:54,711 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 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-03-31 23:19:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:19:54,770 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2023-03-31 23:19:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 23:19:54,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2023-03-31 23:19:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:19:54,776 INFO L225 Difference]: With dead ends: 51 [2023-03-31 23:19:54,777 INFO L226 Difference]: Without dead ends: 30 [2023-03-31 23:19:54,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:19:54,781 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:19:54,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 79 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:19:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-03-31 23:19:54,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-03-31 23:19:54,805 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) [2023-03-31 23:19:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-03-31 23:19:54,807 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2023-03-31 23:19:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:19:54,807 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-03-31 23:19:54,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-03-31 23:19:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-03-31 23:19:54,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 23:19:54,809 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:19:54,809 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] [2023-03-31 23:19:54,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:19:55,014 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 [2023-03-31 23:19:55,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:19:55,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:19:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash -400381422, now seen corresponding path program 1 times [2023-03-31 23:19:55,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:19:55,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896751373] [2023-03-31 23:19:55,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:19:55,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:19:55,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:19:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312308983] [2023-03-31 23:19:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:19:55,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:19:55,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:19:55,051 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) [2023-03-31 23:19:55,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:19:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:19:55,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2023-03-31 23:19:55,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:19:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:19:55,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:19:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:19:55,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:19:55,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896751373] [2023-03-31 23:19:55,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-31 23:19:55,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312308983] [2023-03-31 23:19:55,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312308983] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:19:55,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144410604] [2023-03-31 23:19:55,532 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-03-31 23:19:55,532 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:19:55,534 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:19:55,537 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:19:55,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:19:55,582 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 8 for LOIs [2023-03-31 23:19:55,923 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2023-03-31 23:19:55,965 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2023-03-31 23:19:55,967 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 23:19:55,971 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:19:56,532 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '399#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 23:19:56,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:19:56,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-31 23:19:56,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-03-31 23:19:56,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371538599] [2023-03-31 23:19:56,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-31 23:19:56,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 23:19:56,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:19:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 23:19:56,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2023-03-31 23:19:56,536 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) [2023-03-31 23:19:56,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:19:56,782 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-03-31 23:19:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:19:56,783 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 [2023-03-31 23:19:56,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:19:56,783 INFO L225 Difference]: With dead ends: 34 [2023-03-31 23:19:56,783 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:19:56,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2023-03-31 23:19:56,785 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:19:56,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 106 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:19:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:19:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:19:56,785 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) [2023-03-31 23:19:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:19:56,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-03-31 23:19:56,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:19:56,786 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:19:56,786 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) [2023-03-31 23:19:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:19:56,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:19:56,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:19:56,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-31 23:19:56,994 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 [2023-03-31 23:19:56,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:19:57,079 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 8) no Hoare annotation was computed. [2023-03-31 23:19:57,079 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 8) no Hoare annotation was computed. [2023-03-31 23:19:57,079 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-03-31 23:19:57,079 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-03-31 23:19:57,079 INFO L902 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2023-03-31 23:19:57,079 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 21 48) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 21 48) the Hoare annotation is: true [2023-03-31 23:19:57,080 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)) [2023-03-31 23:19:57,080 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)) [2023-03-31 23:19:57,080 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)) [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 36 45) no Hoare annotation was computed. [2023-03-31 23:19:57,080 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:19:57,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-03-31 23:19:57,081 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-03-31 23:19:57,081 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2023-03-31 23:19:57,084 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 23:19:57,085 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:19:57,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:19:57 BoogieIcfgContainer [2023-03-31 23:19:57,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:19:57,094 INFO L158 Benchmark]: Toolchain (without parser) took 3567.91ms. Allocated memory was 263.2MB in the beginning and 347.1MB in the end (delta: 83.9MB). Free memory was 223.9MB in the beginning and 214.2MB in the end (delta: 9.7MB). Peak memory consumption was 95.2MB. Max. memory is 8.0GB. [2023-03-31 23:19:57,094 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 114.8MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:19:57,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.25ms. Allocated memory is still 263.2MB. Free memory was 223.9MB in the beginning and 213.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 23:19:57,095 INFO L158 Benchmark]: Boogie Preprocessor took 51.92ms. Allocated memory is still 263.2MB. Free memory was 213.4MB in the beginning and 212.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 23:19:57,095 INFO L158 Benchmark]: RCFGBuilder took 381.94ms. Allocated memory is still 263.2MB. Free memory was 212.0MB in the beginning and 199.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 23:19:57,095 INFO L158 Benchmark]: TraceAbstraction took 2872.65ms. Allocated memory was 263.2MB in the beginning and 347.1MB in the end (delta: 83.9MB). Free memory was 199.1MB in the beginning and 214.2MB in the end (delta: -15.1MB). Peak memory consumption was 70.0MB. Max. memory is 8.0GB. [2023-03-31 23:19:57,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 114.8MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 236.25ms. Allocated memory is still 263.2MB. Free memory was 223.9MB in the beginning and 213.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.92ms. Allocated memory is still 263.2MB. Free memory was 213.4MB in the beginning and 212.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 381.94ms. Allocated memory is still 263.2MB. Free memory was 212.0MB in the beginning and 199.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2872.65ms. Allocated memory was 263.2MB in the beginning and 347.1MB in the end (delta: 83.9MB). Free memory was 199.1MB in the beginning and 214.2MB in the end (delta: -15.1MB). Peak memory consumption was 70.0MB. 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 42 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=1, 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, 12 LocationsWithAnnotation, 21 PreInvPairs, 30 NumberOfFragments, 42 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 3 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 41 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! [2023-03-31 23:19:57,125 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...