./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_3_8.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_3_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:14:33,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:33,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:14:33,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:33,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:34,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:34,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:34,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:34,026 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:34,027 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:34,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:34,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:34,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:34,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:34,028 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:34,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:34,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:34,029 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:34,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:14:34,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:34,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:34,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:34,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:34,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:34,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:34,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:34,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:34,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:34,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:34,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:34,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:34,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:34,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:34,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:34,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:34,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:34,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:14:34,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:14:34,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:34,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:34,035 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:34,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:34,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:34,035 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:34,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:34,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:34,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:34,251 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:34,251 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:34,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_3_8.yml/witness.yml [2024-08-14 14:14:34,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:34,324 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:34,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i [2024-08-14 14:14:35,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:35,755 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:35,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i [2024-08-14 14:14:35,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b967896/07ae0e730de043c084e8d3edc642fa1f/FLAGad5ec6ec4 [2024-08-14 14:14:36,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b967896/07ae0e730de043c084e8d3edc642fa1f [2024-08-14 14:14:36,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:36,163 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:36,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:36,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:36,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:36,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:34" (1/2) ... [2024-08-14 14:14:36,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ba3929 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:34" (1/2) ... [2024-08-14 14:14:36,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65f944a1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:36" (2/2) ... [2024-08-14 14:14:36,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ba3929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:36" (2/2) ... [2024-08-14 14:14:36,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:36,318 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[1224,1237] [2024-08-14 14:14:36,337 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[2848,2861] [2024-08-14 14:14:36,340 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:36,349 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:36,359 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[1224,1237] [2024-08-14 14:14:36,369 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[2848,2861] [2024-08-14 14:14:36,370 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:36,384 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:36,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36 WrapperNode [2024-08-14 14:14:36,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:36,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:36,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:36,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:36,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,418 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:14:36,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:36,435 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:36,436 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:36,436 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:36,437 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (1/1) ... [2024-08-14 14:14:36,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:36,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:36,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:14:36,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:14:36,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:14:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:14:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:14:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:14:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:36,615 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:36,617 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:36,808 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:36,808 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:36,819 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:36,820 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:36,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:36 BoogieIcfgContainer [2024-08-14 14:14:36,821 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:36,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:36,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:36,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:36,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:34" (1/4) ... [2024-08-14 14:14:36,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6394fd6f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:36" (2/4) ... [2024-08-14 14:14:36,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6394fd6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:36" (3/4) ... [2024-08-14 14:14:36,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6394fd6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:36, skipping insertion in model container [2024-08-14 14:14:36,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:36" (4/4) ... [2024-08-14 14:14:36,832 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_3_8.i [2024-08-14 14:14:36,832 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:36,851 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:36,852 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:36,880 INFO L92 WitnessUtils]: Constructing product of automaton with 68 states and violation witness of the following lengths: [19] [2024-08-14 14:14:36,887 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 68 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-08-14 14:14:36,954 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 120 states to 44 states. [2024-08-14 14:14:36,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:36,979 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3bab66e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:36,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2024-08-14 14:14:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-08-14 14:14:36,986 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:36,986 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:14:36,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:36,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:36,991 INFO L85 PathProgramCache]: Analyzing trace with hash -984989146, now seen corresponding path program 1 times [2024-08-14 14:14:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:14:37,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826035287] [2024-08-14 14:14:37,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:14:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:37,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:14:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:37,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:14:37,125 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:14:37,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:14:37,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:14:37,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:14:37,133 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:14:37,137 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:14:37,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:14:37 BoogieIcfgContainer [2024-08-14 14:14:37,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:14:37,151 INFO L158 Benchmark]: Toolchain (without parser) took 987.66ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 94.9MB in the beginning and 160.8MB in the end (delta: -66.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-08-14 14:14:37,151 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:37,152 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 151.0MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:37,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.21ms. Allocated memory is still 151.0MB. Free memory was 94.5MB in the beginning and 81.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:14:37,152 INFO L158 Benchmark]: Boogie Preprocessor took 49.54ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:14:37,153 INFO L158 Benchmark]: IcfgBuilder took 385.48ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 79.2MB in the beginning and 183.9MB in the end (delta: -104.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-08-14 14:14:37,153 INFO L158 Benchmark]: TraceAbstraction took 326.93ms. Allocated memory is still 220.2MB. Free memory was 182.9MB in the beginning and 160.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-14 14:14:37,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.74ms. Allocated memory is still 151.0MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.21ms. Allocated memory is still 151.0MB. Free memory was 94.5MB in the beginning and 81.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.54ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 385.48ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 79.2MB in the beginning and 183.9MB in the end (delta: -104.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 326.93ms. Allocated memory is still 220.2MB. Free memory was 182.9MB in the beginning and 160.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 109]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 104. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L100] CALL, EXPR f(IN) VAL [\old(x)=111] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=111] [L100] RET, EXPR f(IN) VAL [IN=111] [L100] CALL, EXPR fp(IN) VAL [\old(x)=111] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=111] [L100] RET, EXPR fp(IN) VAL [IN=111] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=112] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=112] [L102] RET, EXPR f(x) VAL [IN=111, x=112] [L102] CALL, EXPR fp(x) VAL [\old(x)=112] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=112] [L102] RET, EXPR fp(x) VAL [IN=111, x=112] [L102] x = x - f(x)/fp(x) [L104] CALL, EXPR f(x) VAL [\old(x)=110] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=110] [L104] RET, EXPR f(x) VAL [IN=111, x=110] [L104] CALL, EXPR fp(x) VAL [\old(x)=110] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=110] [L104] RET, EXPR fp(x) VAL [IN=111, x=110] [L104] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=111] [L109] reach_error() VAL [IN=111] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 71 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:14:37,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_3_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:14:39,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:39,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:14:39,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:39,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:39,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:39,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:39,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:39,164 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:39,164 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:39,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:39,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:39,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:39,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:39,168 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:39,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:39,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:39,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:39,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:39,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:39,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:39,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:39,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:39,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:14:39,171 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:14:39,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:39,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:14:39,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:39,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:39,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:39,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:39,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:39,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:39,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:39,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:39,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:39,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:39,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:39,174 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:14:39,175 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:14:39,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:39,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:39,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:39,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:39,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:39,176 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:14:39,176 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:39,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:39,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:39,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:39,438 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:39,439 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:39,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_3_8.yml/witness.yml [2024-08-14 14:14:39,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:39,510 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:39,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i [2024-08-14 14:14:40,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:40,996 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:40,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i [2024-08-14 14:14:41,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1547be2/0de82ba370e54064ae654fd87249662b/FLAGba0be992d [2024-08-14 14:14:41,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1547be2/0de82ba370e54064ae654fd87249662b [2024-08-14 14:14:41,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:41,019 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:41,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:41,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:41,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:41,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:39" (1/2) ... [2024-08-14 14:14:41,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107692c4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:41, skipping insertion in model container [2024-08-14 14:14:41,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:39" (1/2) ... [2024-08-14 14:14:41,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6976e76c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:41, skipping insertion in model container [2024-08-14 14:14:41,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:41" (2/2) ... [2024-08-14 14:14:41,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107692c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41, skipping insertion in model container [2024-08-14 14:14:41,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:41" (2/2) ... [2024-08-14 14:14:41,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:41,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[1224,1237] [2024-08-14 14:14:41,242 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[2848,2861] [2024-08-14 14:14:41,243 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:41,263 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:41,277 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[1224,1237] [2024-08-14 14:14:41,296 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_3_8.i[2848,2861] [2024-08-14 14:14:41,297 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:41,318 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:41,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41 WrapperNode [2024-08-14 14:14:41,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:41,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:41,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:41,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:41,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,358 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:14:41,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:41,384 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:41,384 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:41,384 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:41,385 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (1/1) ... [2024-08-14 14:14:41,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:41,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:41,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:14:41,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:14:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:14:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:14:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:41,551 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:41,554 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:15:10,421 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-14 14:15:10,421 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:15:10,434 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:15:10,434 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:15:10,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:15:10 BoogieIcfgContainer [2024-08-14 14:15:10,435 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:15:10,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:15:10,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:15:10,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:15:10,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:39" (1/4) ... [2024-08-14 14:15:10,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7237a7c8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:15:10, skipping insertion in model container [2024-08-14 14:15:10,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:41" (2/4) ... [2024-08-14 14:15:10,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7237a7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:15:10, skipping insertion in model container [2024-08-14 14:15:10,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:41" (3/4) ... [2024-08-14 14:15:10,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7237a7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:15:10, skipping insertion in model container [2024-08-14 14:15:10,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:15:10" (4/4) ... [2024-08-14 14:15:10,444 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_3_8.i [2024-08-14 14:15:10,444 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:15:10,465 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:15:10,465 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:15:10,493 INFO L92 WitnessUtils]: Constructing product of automaton with 66 states and violation witness of the following lengths: [19] [2024-08-14 14:15:10,498 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 66 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 42 states have internal predecessors, (51), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-08-14 14:15:10,559 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 116 states to 44 states. [2024-08-14 14:15:10,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:15:10,589 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6eba380b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:15:10,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:15:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2024-08-14 14:15:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-08-14 14:15:10,593 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:15:10,594 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:15:10,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:15:10,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:15:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1243610099, now seen corresponding path program 1 times [2024-08-14 14:15:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:15:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440418335] [2024-08-14 14:15:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:15:10,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:15:10,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:15:10,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-14 14:15:10,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-14 14:15:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:15:48,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:16:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:16:07,480 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:16:07,482 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:16:07,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:16:07,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:16:07,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-08-14 14:16:07,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:16:07,689 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:16:07,692 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:16:07,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:16:07 BoogieIcfgContainer [2024-08-14 14:16:07,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:16:07,711 INFO L158 Benchmark]: Toolchain (without parser) took 86692.58ms. Allocated memory is still 81.8MB. Free memory was 47.1MB in the beginning and 46.0MB in the end (delta: 1.2MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2024-08-14 14:16:07,712 INFO L158 Benchmark]: Witness Parser took 0.84ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 101.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:16:07,712 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:07,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.88ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 57.5MB in the end (delta: -10.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-08-14 14:16:07,713 INFO L158 Benchmark]: Boogie Preprocessor took 64.60ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 54.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:16:07,714 INFO L158 Benchmark]: IcfgBuilder took 29050.93ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 36.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:16:07,714 INFO L158 Benchmark]: TraceAbstraction took 57273.58ms. Allocated memory is still 81.8MB. Free memory was 36.1MB in the beginning and 46.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:07,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.84ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 101.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.88ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 57.5MB in the end (delta: -10.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.60ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 54.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 29050.93ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 36.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 57273.58ms. Allocated memory is still 81.8MB. Free memory was 36.1MB in the beginning and 46.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * 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 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [IN=1.2158231735229492] [L100] CALL, EXPR f(IN) VAL [\old(x)=1.2158231735229492] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.2158231735229492, \result=0.9391984939575195] [L100] RET, EXPR f(IN) VAL [IN=1.2158231735229492] [L100] CALL, EXPR fp(IN) VAL [\old(x)=1.2158231735229492] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.2158231735229492, \result=0.3564213514328003] [L100] RET, EXPR fp(IN) VAL [IN=1.2158231735229492] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=-1.4192559719085693] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.4192559719085693, \result=-0.9930793642997742] [L102] RET, EXPR f(x) VAL [x=-1.4192559719085693] [L102] CALL, EXPR fp(x) VAL [\old(x)=-1.4192559719085693] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.4192559719085693, \result=0.17326362431049347] [L102] RET, EXPR fp(x) VAL [x=-1.4192559719085693] [L102] x = x - f(x)/fp(x) [L104] CALL, EXPR f(x) VAL [\old(x)=4.312353134155273] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=4.312353134155273, \result=8.876964569091797] [L104] RET, EXPR f(x) VAL [x=4.312353134155273] [L104] CALL, EXPR fp(x) VAL [\old(x)=4.312353134155273] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=4.312353134155273, \result=15.043307304382324] [L104] RET, EXPR fp(x) VAL [x=4.312353134155273] [L104] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 75 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 57.2s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 37.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:16:07,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE