./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_1+newton_2_7.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_1+newton_2_7.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 03fe66fa 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_1+newton_2_7.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_1+newton_2_7.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-03fe66f-m [2024-08-15 18:04:46,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:04:46,161 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:04:46,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:04:46,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:04:46,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:04:46,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:04:46,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:04:46,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:04:46,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:04:46,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:04:46,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:04:46,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:04:46,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:04:46,215 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:04:46,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:04:46,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:04:46,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:04:46,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:04:46,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:04:46,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:04:46,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:04:46,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:04:46,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:04:46,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:04:46,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:04:46,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:04:46,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:04:46,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:04:46,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:04:46,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:04:46,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:04:46,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:04:46,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:04:46,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:04:46,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:04:46,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:04:46,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:04:46,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:04:46,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:04:46,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:04:46,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:04:46,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:04:46,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:04:46,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:04:46,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:04:46,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:04:46,534 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:04:46,534 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:04:46,536 INFO L431 ainManager$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_1+newton_2_7.yml/witness.yml [2024-08-15 18:04:46,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:04:46,605 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:04:46,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_1+newton_2_7.i [2024-08-15 18:04:48,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:04:48,396 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:04:48,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_2_7.i [2024-08-15 18:04:48,404 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4767a0498/ea24483626974fcd9b024cdfed0d0514/FLAG684148743 [2024-08-15 18:04:48,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4767a0498/ea24483626974fcd9b024cdfed0d0514 [2024-08-15 18:04:48,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:04:48,423 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:04:48,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:04:48,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:04:48,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:04:48,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:46" (1/2) ... [2024-08-15 18:04:48,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649724d1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:48, skipping insertion in model container [2024-08-15 18:04:48,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:46" (1/2) ... [2024-08-15 18:04:48,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6597496b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:48, skipping insertion in model container [2024-08-15 18:04:48,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:04:48" (2/2) ... [2024-08-15 18:04:48,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649724d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48, skipping insertion in model container [2024-08-15 18:04:48,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:04:48" (2/2) ... [2024-08-15 18:04:48,472 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:04:48,669 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_1+newton_2_7.i[1226,1239] [2024-08-15 18:04:48,711 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_1+newton_2_7.i[2807,2820] [2024-08-15 18:04:48,713 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:04:48,728 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:04:48,741 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_1+newton_2_7.i[1226,1239] [2024-08-15 18:04:48,758 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_1+newton_2_7.i[2807,2820] [2024-08-15 18:04:48,763 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:04:48,784 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:04:48,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48 WrapperNode [2024-08-15 18:04:48,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:04:48,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:04:48,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:04:48,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:04:48,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,843 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]. [2024-08-15 18:04:48,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:04:48,871 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:04:48,871 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:04:48,871 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:04:48,872 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (1/1) ... [2024-08-15 18:04:48,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:04:48,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:04:48,913 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) [2024-08-15 18:04:48,917 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 [2024-08-15 18:04:48,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:04:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:04:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:04:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:04:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:04:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:04:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:04:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:04:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:04:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:04:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:04:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:04:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:04:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:04:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:04:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:04:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:04:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:04:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:04:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:04:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:04:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:04:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:04:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:04:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:04:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:04:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:04:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:04:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:04:49,077 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:04:49,080 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:04:49,347 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-08-15 18:04:49,348 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:04:49,359 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:04:49,359 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:04:49,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:04:49 BoogieIcfgContainer [2024-08-15 18:04:49,360 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:04:49,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:04:49,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:04:49,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:04:49,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:46" (1/4) ... [2024-08-15 18:04:49,366 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:04:49,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e979d5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:04:49, skipping insertion in model container [2024-08-15 18:04:49,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:04:48" (2/4) ... [2024-08-15 18:04:49,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e979d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:04:49, skipping insertion in model container [2024-08-15 18:04:49,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:48" (3/4) ... [2024-08-15 18:04:49,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e979d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:04:49, skipping insertion in model container [2024-08-15 18:04:49,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:04:49" (4/4) ... [2024-08-15 18:04:49,371 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_2_7.i [2024-08-15 18:04:49,389 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:04:49,389 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:04:49,419 INFO L90 WitnessUtils]: Constructing product of automaton with 63 states and violation witness of the following lengths: [15] [2024-08-15 18:04:49,508 INFO L95 WitnessUtils]: Product has 106 reachable states. [2024-08-15 18:04:49,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:04:49,542 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;@4c647026, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:04:49,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:04:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2024-08-15 18:04:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-15 18:04:49,555 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:04:49,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-08-15 18:04:49,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:04:49,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:04:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1153453443, now seen corresponding path program 1 times [2024-08-15 18:04:49,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:04:49,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124768350] [2024-08-15 18:04:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:04:49,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:04:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:04:49,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:04:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:04:49,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:04:49,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:04:49,791 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:04:49,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:04:49,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:04:49,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:04:49,806 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:04:49,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:04:49 BoogieIcfgContainer [2024-08-15 18:04:49,832 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:04:49,834 INFO L158 Benchmark]: Toolchain (without parser) took 1412.70ms. Allocated memory is still 144.7MB. Free memory was 88.0MB in the beginning and 91.0MB in the end (delta: -3.0MB). Peak memory consumption was 567.0kB. Max. memory is 16.1GB. [2024-08-15 18:04:49,834 INFO L158 Benchmark]: Witness Parser took 0.53ms. Allocated memory is still 144.7MB. Free memory was 105.4MB in the beginning and 105.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:04:49,835 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:04:49,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.89ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 74.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:04:49,836 INFO L158 Benchmark]: Boogie Preprocessor took 79.47ms. Allocated memory is still 144.7MB. Free memory was 74.7MB in the beginning and 72.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:04:49,837 INFO L158 Benchmark]: IcfgBuilder took 489.09ms. Allocated memory is still 144.7MB. Free memory was 71.9MB in the beginning and 112.0MB in the end (delta: -40.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-08-15 18:04:49,838 INFO L158 Benchmark]: TraceAbstraction took 470.72ms. Allocated memory is still 144.7MB. Free memory was 110.8MB in the beginning and 91.0MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-15 18:04:49,841 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 0.53ms. Allocated memory is still 144.7MB. Free memory was 105.4MB in the beginning and 105.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.89ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 74.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.47ms. Allocated memory is still 144.7MB. Free memory was 74.7MB in the beginning and 72.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 489.09ms. Allocated memory is still 144.7MB. Free memory was 71.9MB in the beginning and 112.0MB in the end (delta: -40.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 470.72ms. Allocated memory is still 144.7MB. Free memory was 110.8MB in the beginning and 91.0MB in the end (delta: 19.8MB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 95. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) VAL [\old(cond)=1] [L75] COND FALSE !(!cond) VAL [\old(cond)=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) VAL [\old(x)=110] [L80] 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] [L93] RET, EXPR f(IN) VAL [IN=110] [L93] CALL, EXPR fp(IN) VAL [\old(x)=110] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=110] [L93] RET, EXPR fp(IN) VAL [IN=110] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=111] [L80] 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] [L95] RET, EXPR f(x) VAL [IN=110, x=111] [L95] CALL, EXPR fp(x) VAL [\old(x)=111] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=111] [L95] RET, EXPR fp(x) VAL [IN=110, x=111] [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=110] [L102] 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, 66 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, 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=106occurred 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, 34 NumberOfCodeBlocks, 34 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 [2024-08-15 18:04:49,879 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_1+newton_2_7.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_1+newton_2_7.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-03fe66f-m [2024-08-15 18:04:52,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:04:52,407 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:04:52,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:04:52,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:04:52,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:04:52,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:04:52,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:04:52,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:04:52,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:04:52,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:04:52,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:04:52,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:04:52,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:04:52,459 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:04:52,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:04:52,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:04:52,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:04:52,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:04:52,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:04:52,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:04:52,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:04:52,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:04:52,467 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:04:52,467 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:04:52,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:04:52,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:04:52,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:04:52,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:04:52,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:04:52,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:04:52,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:04:52,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:04:52,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:04:52,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:04:52,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:04:52,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:04:52,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:04:52,472 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:04:52,473 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:04:52,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:04:52,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:04:52,474 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:04:52,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:04:52,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:04:52,474 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:04:52,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:04:52,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:04:52,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:04:52,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:04:52,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:04:52,890 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:04:52,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_1+newton_2_7.i [2024-08-15 18:04:54,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:04:54,868 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:04:54,869 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_2_7.i [2024-08-15 18:04:54,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d6889e0/d673efa2f75240afa932f3c0662d57ec/FLAGf20b007f3 [2024-08-15 18:04:55,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d6889e0/d673efa2f75240afa932f3c0662d57ec [2024-08-15 18:04:55,260 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:04:55,261 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:04:55,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_1+newton_2_7.yml/witness.yml [2024-08-15 18:04:55,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:04:55,370 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:04:55,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:04:55,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:04:55,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:04:55,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:04:55" (1/2) ... [2024-08-15 18:04:55,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ed438e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:55, skipping insertion in model container [2024-08-15 18:04:55,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:04:55" (1/2) ... [2024-08-15 18:04:55,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4644b075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:04:55, skipping insertion in model container [2024-08-15 18:04:55,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:55" (2/2) ... [2024-08-15 18:04:55,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ed438e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55, skipping insertion in model container [2024-08-15 18:04:55,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:55" (2/2) ... [2024-08-15 18:04:55,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:04:55,593 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_1+newton_2_7.i[1226,1239] [2024-08-15 18:04:55,624 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_1+newton_2_7.i[2807,2820] [2024-08-15 18:04:55,626 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:04:55,648 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:04:55,669 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_1+newton_2_7.i[1226,1239] [2024-08-15 18:04:55,689 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_1+newton_2_7.i[2807,2820] [2024-08-15 18:04:55,691 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:04:55,708 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:04:55,709 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55 WrapperNode [2024-08-15 18:04:55,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:04:55,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:04:55,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:04:55,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:04:55,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,774 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]. [2024-08-15 18:04:55,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:04:55,811 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:04:55,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:04:55,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:04:55,813 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (1/1) ... [2024-08-15 18:04:55,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:04:55,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:04:55,870 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) [2024-08-15 18:04:55,878 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 [2024-08-15 18:04:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:04:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:04:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:04:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:04:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:04:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:04:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:04:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:04:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:04:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:04:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:04:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:04:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:04:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:04:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:04:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-15 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:04:56,061 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:04:56,064 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:05:25,770 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-08-15 18:05:25,771 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:05:25,785 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:05:25,785 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:05:25,786 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:25 BoogieIcfgContainer [2024-08-15 18:05:25,786 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:05:25,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:05:25,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:05:25,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:05:25,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:04:55" (1/4) ... [2024-08-15 18:05:25,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658d2413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:05:25, skipping insertion in model container [2024-08-15 18:05:25,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:04:55" (2/4) ... [2024-08-15 18:05:25,799 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:05:25,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658d2413 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:05:25, skipping insertion in model container [2024-08-15 18:05:25,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:04:55" (3/4) ... [2024-08-15 18:05:25,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658d2413 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:05:25, skipping insertion in model container [2024-08-15 18:05:25,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:25" (4/4) ... [2024-08-15 18:05:25,806 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_2_7.i [2024-08-15 18:05:25,830 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:05:25,830 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:05:25,873 INFO L90 WitnessUtils]: Constructing product of automaton with 61 states and violation witness of the following lengths: [15] [2024-08-15 18:05:25,959 INFO L95 WitnessUtils]: Product has 102 reachable states. [2024-08-15 18:05:25,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:05:25,989 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;@61b8add, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:05:25,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:05:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2024-08-15 18:05:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-15 18:05:26,000 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:05:26,001 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-08-15 18:05:26,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:05:26,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:05:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1121564323, now seen corresponding path program 1 times [2024-08-15 18:05:26,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:05:26,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772507086] [2024-08-15 18:05:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:05:26,024 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 [2024-08-15 18:05:26,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:05:26,028 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) [2024-08-15 18:05:26,030 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 [2024-08-15 18:06:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:06:48,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:07:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:07:57,183 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:07:57,186 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:07:57,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:07:57,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:07:57,291 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 [2024-08-15 18:07:57,390 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 [2024-08-15 18:07:57,396 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:07:57,401 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:07:57,423 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:07:57 BoogieIcfgContainer [2024-08-15 18:07:57,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:07:57,425 INFO L158 Benchmark]: Toolchain (without parser) took 182054.82ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 48.3MB in the beginning and 72.7MB in the end (delta: -24.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,425 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 44.0MB. Free memory was 22.8MB in the beginning and 22.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:07:57,426 INFO L158 Benchmark]: Witness Parser took 22.35ms. Allocated memory is still 69.2MB. Free memory was 31.0MB in the beginning and 50.6MB in the end (delta: -19.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.95ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 34.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,427 INFO L158 Benchmark]: Boogie Preprocessor took 100.49ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 32.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,427 INFO L158 Benchmark]: IcfgBuilder took 29974.99ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 31.8MB in the beginning and 65.0MB in the end (delta: -33.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,428 INFO L158 Benchmark]: TraceAbstraction took 151632.16ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 72.7MB in the end (delta: -8.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-15 18:07:57,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 44.0MB. Free memory was 22.8MB in the beginning and 22.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 22.35ms. Allocated memory is still 69.2MB. Free memory was 31.0MB in the beginning and 50.6MB in the end (delta: -19.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.95ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 34.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.49ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 32.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 29974.99ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 31.8MB in the beginning and 65.0MB in the end (delta: -33.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 151632.16ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 72.7MB in the end (delta: -8.6MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) VAL [\old(cond)=1] [L75] COND FALSE !(!cond) VAL [\old(cond)=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) VAL [IN=-1.2856413125991821] [L93] CALL, EXPR f(IN) VAL [\old(x)=-1.2856413125991821] [L80] 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)=-1.2856413125991821, \result=-0.961895763874054] [L93] RET, EXPR f(IN) VAL [IN=-1.2856413125991821] [L93] CALL, EXPR fp(IN) VAL [\old(x)=-1.2856413125991821] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.2856413125991821, \result=0.29366785287857056] [L93] RET, EXPR fp(IN) VAL [IN=-1.2856413125991821] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=1.9898134469985962] [L80] 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)=1.9898134469985962, \result=0.9611992239952087] [L95] RET, EXPR f(x) VAL [x=1.9898134469985962] [L95] CALL, EXPR fp(x) VAL [\old(x)=1.9898134469985962] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.9898134469985962, \result=-0.24028393626213074] [L95] RET, EXPR fp(x) VAL [x=1.9898134469985962] [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) [L102] 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, 70 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 151.5s, OverallIterations: 1, TraceHistogramMax: 2, 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=102occurred 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, 82.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 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! [2024-08-15 18:07:57,557 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