./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_4.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_4.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_1_4.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_4.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 14:13:55,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:13:55,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:13:55,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:13:55,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:13:55,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:13:55,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:13:55,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:13:55,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:13:55,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:13:55,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:13:55,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:13:55,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:13:55,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:13:55,300 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:13:55,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:13:55,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:13:55,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:13:55,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:13:55,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:13:55,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:13:55,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:13:55,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:13:55,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:13:55,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:13:55,310 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:13:55,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:13:55,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:13:55,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:13:55,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:13:55,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:13:55,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:13:55,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:13:55,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:13:55,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:13:55,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:13:55,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:13:55,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:13:55,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:13:55,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:13:55,332 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:13:55,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:13:55,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:13:55,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:13:55,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:13:55,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:13:55,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:13:55,610 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:13:55,611 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:13:55,612 INFO L431 ainManager$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_1_4.yml/witness.yml [2024-08-14 14:13:55,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:13:55,719 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:13:55,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_4.i [2024-08-14 14:13:57,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:13:57,364 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:13:57,365 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_4.i [2024-08-14 14:13:57,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef03ab8c/4a14f27b0f2f49858aaca9863be9c4e1/FLAGea9110345 [2024-08-14 14:13:57,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef03ab8c/4a14f27b0f2f49858aaca9863be9c4e1 [2024-08-14 14:13:57,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:13:57,743 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:13:57,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:57,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:13:57,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:13:57,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:55" (1/2) ... [2024-08-14 14:13:57,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62732963 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:57, skipping insertion in model container [2024-08-14 14:13:57,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:55" (1/2) ... [2024-08-14 14:13:57,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@564cda91 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:57, skipping insertion in model container [2024-08-14 14:13:57,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:57" (2/2) ... [2024-08-14 14:13:57,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62732963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:57, skipping insertion in model container [2024-08-14 14:13:57,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:57" (2/2) ... [2024-08-14 14:13:57,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:13:57,950 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_1_4.i[1224,1237] [2024-08-14 14:13:57,988 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_1_4.i[2806,2819] [2024-08-14 14:13:57,993 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:58,013 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:13:58,055 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_1_4.i[1224,1237] [2024-08-14 14:13:58,064 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_1_4.i[2806,2819] [2024-08-14 14:13:58,067 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:58,087 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:13:58,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58 WrapperNode [2024-08-14 14:13:58,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:58,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:13:58,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:13:58,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:13:58,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,138 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 14:13:58,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,155 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:13:58,159 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:13:58,159 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:13:58,160 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:13:58,160 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (1/1) ... [2024-08-14 14:13:58,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:13:58,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:13:58,196 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 14:13:58,200 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 14:13:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:13:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:13:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:13:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:13:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:13:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:13:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:13:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:13:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:13:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:13:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:13:58,355 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:13:58,359 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:13:58,612 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-08-14 14:13:58,614 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:13:58,626 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:13:58,626 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:13:58,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:13:58 BoogieIcfgContainer [2024-08-14 14:13:58,629 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:13:58,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:13:58,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:13:58,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:13:58,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:55" (1/4) ... [2024-08-14 14:13:58,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9adbb8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:13:58, skipping insertion in model container [2024-08-14 14:13:58,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:13:57" (2/4) ... [2024-08-14 14:13:58,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9adbb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:13:58, skipping insertion in model container [2024-08-14 14:13:58,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:58" (3/4) ... [2024-08-14 14:13:58,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9adbb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:13:58, skipping insertion in model container [2024-08-14 14:13:58,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:13:58" (4/4) ... [2024-08-14 14:13:58,640 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_4.i [2024-08-14 14:13:58,640 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:13:58,666 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:13:58,667 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:13:58,706 INFO L92 WitnessUtils]: Constructing product of automaton with 62 states and violation witness of the following lengths: [11] [2024-08-14 14:13:58,712 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 62 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 41 states have internal predecessors, (51), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-08-14 14:13:58,790 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 96 states to 26 states. [2024-08-14 14:13:58,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:13:58,815 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;@484fb4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:13:58,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:13:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:13:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:13:58,822 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:13:58,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:13:58,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:13:58,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:13:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1666045295, now seen corresponding path program 1 times [2024-08-14 14:13:58,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:13:58,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150088200] [2024-08-14 14:13:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:13:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:13:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:13:58,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:13:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:13:58,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:13:58,986 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:13:58,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:13:58,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:13:58,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:13:58,994 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:13:58,998 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:13:59,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:13:59 BoogieIcfgContainer [2024-08-14 14:13:59,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:13:59,014 INFO L158 Benchmark]: Toolchain (without parser) took 1271.97ms. Allocated memory was 142.6MB in the beginning and 216.0MB in the end (delta: 73.4MB). Free memory was 69.5MB in the beginning and 149.9MB in the end (delta: -80.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:59,015 INFO L158 Benchmark]: Witness Parser took 0.51ms. Allocated memory is still 142.6MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:59,015 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:59,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.64ms. Allocated memory was 142.6MB in the beginning and 216.0MB in the end (delta: 73.4MB). Free memory was 69.3MB in the beginning and 184.8MB in the end (delta: -115.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-08-14 14:13:59,016 INFO L158 Benchmark]: Boogie Preprocessor took 69.58ms. Allocated memory is still 216.0MB. Free memory was 184.8MB in the beginning and 185.5MB in the end (delta: -734.9kB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-08-14 14:13:59,017 INFO L158 Benchmark]: IcfgBuilder took 470.03ms. Allocated memory is still 216.0MB. Free memory was 185.5MB in the beginning and 169.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:13:59,017 INFO L158 Benchmark]: TraceAbstraction took 382.27ms. Allocated memory is still 216.0MB. Free memory was 169.8MB in the beginning and 149.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-14 14:13:59,020 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 0.51ms. Allocated memory is still 142.6MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.64ms. Allocated memory was 142.6MB in the beginning and 216.0MB in the end (delta: 73.4MB). Free memory was 69.3MB in the beginning and 184.8MB in the end (delta: -115.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.58ms. Allocated memory is still 216.0MB. Free memory was 184.8MB in the beginning and 185.5MB in the end (delta: -734.9kB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * IcfgBuilder took 470.03ms. Allocated memory is still 216.0MB. Free memory was 185.5MB in the beginning and 169.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 382.27ms. Allocated memory is still 216.0MB. Free memory was 169.8MB in the beginning and 149.9MB in the end (delta: 19.9MB). 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 100. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L100] CALL, EXPR f(IN) 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] [L100] RET, EXPR f(IN) VAL [IN=110] [L100] CALL, EXPR fp(IN) 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] [L100] RET, EXPR fp(IN) VAL [IN=110] [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=110] [L109] reach_error() VAL [IN=110] - 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, 65 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=26occurred 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, 25 NumberOfCodeBlocks, 25 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 14:13:59,053 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_1_4.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_4.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 14:14:01,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:01,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:14:01,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:01,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:01,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:01,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:01,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:01,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:01,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:01,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:01,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:01,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:01,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:01,551 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:01,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:01,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:01,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:01,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:01,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:01,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:01,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:01,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:01,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:14:01,554 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:14:01,554 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:01,555 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:14:01,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:01,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:01,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:01,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:01,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:01,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:01,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:01,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:01,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:01,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:01,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:01,558 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:14:01,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:14:01,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:01,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:01,560 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:01,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:01,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:01,560 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:14:01,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:01,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:01,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:01,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:01,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:01,889 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:01,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_4.i [2024-08-14 14:14:03,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:03,674 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:03,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_4.i [2024-08-14 14:14:03,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f804ac16/3101dc204f9748f4bdf0ac2f55e3f00e/FLAG0a327836c [2024-08-14 14:14:04,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f804ac16/3101dc204f9748f4bdf0ac2f55e3f00e [2024-08-14 14:14:04,067 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:04,068 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:04,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_4.yml/witness.yml [2024-08-14 14:14:04,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:04,144 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:04,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:04,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:04,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:04,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:04" (1/2) ... [2024-08-14 14:14:04,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e44d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:04, skipping insertion in model container [2024-08-14 14:14:04,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:04" (1/2) ... [2024-08-14 14:14:04,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ead591f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:04, skipping insertion in model container [2024-08-14 14:14:04,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:04" (2/2) ... [2024-08-14 14:14:04,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e44d6f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04, skipping insertion in model container [2024-08-14 14:14:04,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:04" (2/2) ... [2024-08-14 14:14:04,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:04,374 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_1_4.i[1224,1237] [2024-08-14 14:14:04,418 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_1_4.i[2806,2819] [2024-08-14 14:14:04,419 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:04,442 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:04,458 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_1_4.i[1224,1237] [2024-08-14 14:14:04,478 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_1_4.i[2806,2819] [2024-08-14 14:14:04,479 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:04,503 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:04,504 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04 WrapperNode [2024-08-14 14:14:04,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:04,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:04,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:04,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:04,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,554 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 14:14:04,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:04,588 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:04,588 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:04,588 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:04,589 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (1/1) ... [2024-08-14 14:14:04,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:04,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:04,633 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 14:14:04,636 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 14:14:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:14:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:14:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:04,806 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:04,809 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:29,878 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:29,879 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:29,889 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:29,889 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:29,890 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:29 BoogieIcfgContainer [2024-08-14 14:14:29,890 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:29,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:29,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:29,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:29,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:04" (1/4) ... [2024-08-14 14:14:29,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b788247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:29, skipping insertion in model container [2024-08-14 14:14:29,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:04" (2/4) ... [2024-08-14 14:14:29,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b788247 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:29, skipping insertion in model container [2024-08-14 14:14:29,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:04" (3/4) ... [2024-08-14 14:14:29,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b788247 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:29, skipping insertion in model container [2024-08-14 14:14:29,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:29" (4/4) ... [2024-08-14 14:14:29,899 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_4.i [2024-08-14 14:14:29,899 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:29,919 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:29,920 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:29,942 INFO L92 WitnessUtils]: Constructing product of automaton with 60 states and violation witness of the following lengths: [11] [2024-08-14 14:14:29,946 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 60 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-08-14 14:14:30,021 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 92 states to 26 states. [2024-08-14 14:14:30,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:30,053 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;@643ec131, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:30,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:14:30,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:14:30,060 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:30,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:14:30,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:30,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1693106264, now seen corresponding path program 1 times [2024-08-14 14:14:30,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:14:30,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803427165] [2024-08-14 14:14:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:30,102 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 14:14:30,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:14:30,106 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 14:14:30,108 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 14:17:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:17:07,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:17:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:17:50,819 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:17:50,821 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:17:50,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:17:50,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:17:50,871 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 14:17:51,025 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 14:17:51,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:17:51,035 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:17:51,055 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:17:51 BoogieIcfgContainer [2024-08-14 14:17:51,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:17:51,056 INFO L158 Benchmark]: Toolchain (without parser) took 226912.41ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 36.4MB in the beginning and 52.6MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:51,057 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:51,057 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:51,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.49ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 40.5MB in the end (delta: -4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-08-14 14:17:51,058 INFO L158 Benchmark]: Boogie Preprocessor took 77.56ms. Allocated memory is still 69.2MB. Free memory was 40.5MB in the beginning and 37.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:17:51,059 INFO L158 Benchmark]: IcfgBuilder took 25302.17ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 109.8kB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-08-14 14:17:51,059 INFO L158 Benchmark]: TraceAbstraction took 201163.12ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 52.6MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:17:51,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.49ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 40.5MB in the end (delta: -4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.56ms. Allocated memory is still 69.2MB. Free memory was 40.5MB in the beginning and 37.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 25302.17ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 109.8kB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 201163.12ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 52.6MB in the end (delta: -15.4MB). 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 > -0.8f && IN < 0.8f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) VAL [IN=-0.7214607000350952] [L100] CALL, EXPR f(IN) VAL [\old(x)=-0.7214607000350952] [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)=-0.7214607000350952, \result=-0.6605224013328552] [L100] RET, EXPR f(IN) VAL [IN=-0.7214607000350952] [L100] CALL, EXPR fp(IN) VAL [\old(x)=-0.7214607000350952] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7214607000350952, \result=0.7512316703796387] [L100] RET, EXPR fp(IN) VAL [IN=-0.7214607000350952] [L100] float x = IN - f(IN)/fp(IN); [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, 69 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 201.1s, OverallIterations: 1, TraceHistogramMax: 1, 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=26occurred 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, 157.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 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 14:17:51,156 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