./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_8.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_8.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_4+newton_2_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:06:34,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:06:34,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:06:34,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:06:34,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:06:34,708 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:06:34,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:06:34,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:06:34,710 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:06:34,711 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:06:34,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:06:34,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:06:34,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:06:34,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:06:34,715 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:06:34,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:06:34,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:06:34,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:06:34,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:06:34,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:06:34,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:06:34,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:06:34,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:06:34,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:06:34,718 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:06:34,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:06:34,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:06:34,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:06:34,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:06:34,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:06:34,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:06:34,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:06:34,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:06:34,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:06:34,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:06:34,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:06:34,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:06:34,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:06:34,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:06:34,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:06:34,723 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:06:34,725 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:06:34,725 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:06:34,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:06:35,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:06:35,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:06:35,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:06:35,033 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:06:35,034 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:06:35,035 INFO L431 ainManager$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_2_8.yml/witness.yml [2024-08-15 18:06:35,117 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:06:35,118 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:06:35,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_8.i [2024-08-15 18:06:36,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:06:36,853 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:06:36,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_8.i [2024-08-15 18:06:36,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5ae7361/db9ab9a9a9be4ba5bd27765260908d44/FLAG96a78a199 [2024-08-15 18:06:36,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5ae7361/db9ab9a9a9be4ba5bd27765260908d44 [2024-08-15 18:06:36,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:06:36,888 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:06:36,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:06:36,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:06:36,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:06:36,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:35" (1/2) ... [2024-08-15 18:06:36,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b886842 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:06:36, skipping insertion in model container [2024-08-15 18:06:36,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:35" (1/2) ... [2024-08-15 18:06:36,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d47373b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:06:36, skipping insertion in model container [2024-08-15 18:06:36,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:06:36" (2/2) ... [2024-08-15 18:06:36,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b886842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:36, skipping insertion in model container [2024-08-15 18:06:36,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:06:36" (2/2) ... [2024-08-15 18:06:36,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:06:37,091 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_2_8.i[1224,1237] [2024-08-15 18:06:37,117 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_2_8.i[2827,2840] [2024-08-15 18:06:37,119 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:06:37,129 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:06:37,142 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_2_8.i[1224,1237] [2024-08-15 18:06:37,152 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_2_8.i[2827,2840] [2024-08-15 18:06:37,153 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:06:37,174 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:06:37,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37 WrapperNode [2024-08-15 18:06:37,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:06:37,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:06:37,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:06:37,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:06:37,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,234 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 18:06:37,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:06:37,252 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:06:37,252 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:06:37,253 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:06:37,253 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (1/1) ... [2024-08-15 18:06:37,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:06:37,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:06:37,298 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 18:06:37,303 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 18:06:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:06:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:06:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:06:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:06:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:06:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:06:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:06:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:06:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:06:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:06:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:06:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:06:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:06:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:06:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:06:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:06:37,447 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:06:37,449 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:06:37,650 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-08-15 18:06:37,650 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:06:37,660 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:06:37,660 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:06:37,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:06:37 BoogieIcfgContainer [2024-08-15 18:06:37,661 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:06:37,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:06:37,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:06:37,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:06:37,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:35" (1/4) ... [2024-08-15 18:06:37,668 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:06:37,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0b979 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:06:37, skipping insertion in model container [2024-08-15 18:06:37,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:06:36" (2/4) ... [2024-08-15 18:06:37,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0b979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:06:37, skipping insertion in model container [2024-08-15 18:06:37,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:37" (3/4) ... [2024-08-15 18:06:37,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0b979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:06:37, skipping insertion in model container [2024-08-15 18:06:37,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:06:37" (4/4) ... [2024-08-15 18:06:37,672 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_8.i [2024-08-15 18:06:37,692 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:06:37,692 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:06:37,729 INFO L90 WitnessUtils]: Constructing product of automaton with 65 states and violation witness of the following lengths: [15] [2024-08-15 18:06:37,807 INFO L95 WitnessUtils]: Product has 108 reachable states. [2024-08-15 18:06:37,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:06:37,838 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;@4f3eb48d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:06:37,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:06:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 119 transitions. [2024-08-15 18:06:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-15 18:06:37,847 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:06:37,848 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 18:06:37,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:06:37,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:06:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash -269702855, now seen corresponding path program 1 times [2024-08-15 18:06:37,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:06:37,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346845404] [2024-08-15 18:06:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:06:37,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:06:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:06:37,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:06:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:06:38,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:06:38,048 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:06:38,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:06:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:06:38,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:06:38,060 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:06:38,065 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:06:38,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:06:38 BoogieIcfgContainer [2024-08-15 18:06:38,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:06:38,087 INFO L158 Benchmark]: Toolchain (without parser) took 1198.67ms. Allocated memory is still 178.3MB. Free memory was 119.9MB in the beginning and 67.5MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-08-15 18:06:38,088 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:06:38,088 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:06:38,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.59ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 106.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:06:38,089 INFO L158 Benchmark]: Boogie Preprocessor took 73.33ms. Allocated memory is still 178.3MB. Free memory was 106.7MB in the beginning and 104.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:06:38,089 INFO L158 Benchmark]: IcfgBuilder took 408.36ms. Allocated memory is still 178.3MB. Free memory was 104.6MB in the beginning and 88.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-15 18:06:38,090 INFO L158 Benchmark]: TraceAbstraction took 423.05ms. Allocated memory is still 178.3MB. Free memory was 87.8MB in the beginning and 67.5MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-15 18:06:38,092 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 0.20ms. Allocated memory is still 178.3MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.59ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 106.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.33ms. Allocated memory is still 178.3MB. Free memory was 106.7MB in the beginning and 104.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 408.36ms. Allocated memory is still 178.3MB. Free memory was 104.6MB in the beginning and 88.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 423.05ms. Allocated memory is still 178.3MB. Free memory was 87.8MB in the beginning and 67.5MB in the end (delta: 20.3MB). 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 102. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L100] CALL, EXPR f(IN) VAL [\old(x)=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); [L102] CALL, EXPR f(x) VAL [\old(x)=111] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=111] [L102] RET, EXPR f(x) VAL [IN=110, x=111] [L102] CALL, EXPR fp(x) VAL [\old(x)=111] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=111] [L102] RET, EXPR fp(x) VAL [IN=110, x=111] [L102] x = x - f(x)/fp(x) [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, 68 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=108occurred 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 18:06:38,120 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_2_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:06:40,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:06:40,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:06:40,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:06:40,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:06:40,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:06:40,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:06:40,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:06:40,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:06:40,606 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:06:40,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:06:40,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:06:40,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:06:40,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:06:40,610 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:06:40,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:06:40,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:06:40,611 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:06:40,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:06:40,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:06:40,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:06:40,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:06:40,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:06:40,614 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:06:40,615 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:06:40,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:06:40,615 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:06:40,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:06:40,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:06:40,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:06:40,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:06:40,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:06:40,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:06:40,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:06:40,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:06:40,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:06:40,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:06:40,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:06:40,620 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:06:40,620 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:06:40,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:06:40,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:06:40,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:06:40,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:06:40,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:06:40,622 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:06:40,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:06:40,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:06:41,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:06:41,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:06:41,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:06:41,033 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:06:41,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_8.i [2024-08-15 18:06:42,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:06:42,907 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:06:42,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_8.i [2024-08-15 18:06:42,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b577eaa5/4d6f96175f884fe1bff732d38329f91e/FLAGdd27ddfed [2024-08-15 18:06:42,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b577eaa5/4d6f96175f884fe1bff732d38329f91e [2024-08-15 18:06:42,943 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:06:42,944 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:06:42,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_8.yml/witness.yml [2024-08-15 18:06:43,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:06:43,022 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:06:43,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:06:43,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:06:43,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:06:43,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:06:42" (1/2) ... [2024-08-15 18:06:43,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fde923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:43, skipping insertion in model container [2024-08-15 18:06:43,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:06:42" (1/2) ... [2024-08-15 18:06:43,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@450e32b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:06:43, skipping insertion in model container [2024-08-15 18:06:43,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:43" (2/2) ... [2024-08-15 18:06:43,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fde923 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:06:43, skipping insertion in model container [2024-08-15 18:06:43,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:43" (2/2) ... [2024-08-15 18:06:43,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:06:43,196 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_2_8.i[1224,1237] [2024-08-15 18:06:43,247 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_2_8.i[2827,2840] [2024-08-15 18:06:43,249 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:06:43,263 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:06:43,281 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_2_8.i[1224,1237] [2024-08-15 18:06:43,294 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_2_8.i[2827,2840] [2024-08-15 18:06:43,294 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:06:43,327 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:06:43,328 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:06:43 WrapperNode [2024-08-15 18:06:43,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:06:43,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:06:43,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:06:43,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:06:43,343 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,343 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,358 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,380 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 18:06:43,381 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,381 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,395 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,402 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,404 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:06:43,410 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:06:43,410 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:06:43,411 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:06:43,412 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 06:06:43" (1/1) ... [2024-08-15 18:06:43,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:06:43,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:06:43,452 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 18:06:43,456 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 18:06:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:06:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:06:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:06:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:06:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:06:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:06:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:06:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:06:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:06:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:06:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:06:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:06:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:06:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:06:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:06:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:06:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:06:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:06:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-15 18:06:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:06:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-15 18:06:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:06:43,629 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:06:43,632 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:07:14,025 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-15 18:07:14,025 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:07:14,038 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:07:14,038 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:07:14,038 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:07:14 BoogieIcfgContainer [2024-08-15 18:07:14,038 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:07:14,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:07:14,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:07:14,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:07:14,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:06:42" (1/4) ... [2024-08-15 18:07:14,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:07:14, skipping insertion in model container [2024-08-15 18:07:14,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:06:43" (2/4) ... [2024-08-15 18:07:14,055 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:07:14,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cecd0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:07:14, skipping insertion in model container [2024-08-15 18:07:14,059 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 06:06:43" (3/4) ... [2024-08-15 18:07:14,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cecd0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:07:14, skipping insertion in model container [2024-08-15 18:07:14,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:07:14" (4/4) ... [2024-08-15 18:07:14,061 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_8.i [2024-08-15 18:07:14,081 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:07:14,081 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:07:14,111 INFO L90 WitnessUtils]: Constructing product of automaton with 63 states and violation witness of the following lengths: [15] [2024-08-15 18:07:14,192 INFO L95 WitnessUtils]: Product has 104 reachable states. [2024-08-15 18:07:14,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:07:14,217 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;@3f3a3417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:07:14,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:07:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2024-08-15 18:07:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-15 18:07:14,229 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:07:14,230 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 18:07:14,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:07:14,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:07:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -237813735, now seen corresponding path program 1 times [2024-08-15 18:07:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:07:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121017038] [2024-08-15 18:07:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:07:14,255 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 18:07:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:07:14,258 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 18:07:14,259 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 18:07:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:07:34,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:08:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:08:05,658 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:08:05,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:08:05,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:08:05,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:08:05,754 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 18:08:05,863 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 18:08:05,867 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:08:05,875 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:08:05,900 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:08:05 BoogieIcfgContainer [2024-08-15 18:08:05,900 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:08:05,901 INFO L158 Benchmark]: Toolchain (without parser) took 82878.77ms. Allocated memory is still 69.2MB. Free memory was 34.3MB in the beginning and 27.3MB in the end (delta: 7.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-08-15 18:08:05,901 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:08:05,902 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:08:05,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.63ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 46.4MB in the end (delta: -12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:08:05,902 INFO L158 Benchmark]: Boogie Preprocessor took 80.32ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 43.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:08:05,903 INFO L158 Benchmark]: IcfgBuilder took 30628.26ms. Allocated memory is still 69.2MB. Free memory was 43.5MB in the beginning and 26.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-15 18:08:05,906 INFO L158 Benchmark]: TraceAbstraction took 51858.40ms. Allocated memory is still 69.2MB. Free memory was 25.4MB in the beginning and 27.3MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:08:05,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.63ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 46.4MB in the end (delta: -12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.32ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 43.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 30628.26ms. Allocated memory is still 69.2MB. Free memory was 43.5MB in the beginning and 26.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 51858.40ms. Allocated memory is still 69.2MB. Free memory was 25.4MB in the beginning and 27.3MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) VAL [IN=-1.5411834716796875] [L100] CALL, EXPR f(IN) VAL [\old(x)=-1.5411834716796875] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.5411834716796875, \result=-1.007624864578247] [L100] RET, EXPR f(IN) VAL [IN=-1.5411834716796875] [L100] CALL, EXPR fp(IN) VAL [\old(x)=-1.5411834716796875] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.5411834716796875, \result=0.06606359034776688] [L100] RET, EXPR fp(IN) VAL [IN=-1.5411834716796875] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=13.711164474487305] [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)=13.711164474487305, \result=21697.806640625] [L102] RET, EXPR f(x) VAL [x=13.711164474487305] [L102] CALL, EXPR fp(x) VAL [\old(x)=13.711164474487305] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=13.711164474487305, \result=10607.732421875] [L102] RET, EXPR fp(x) VAL [x=13.711164474487305] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 72 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 51.8s, 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=104occurred 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, 19.7s 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 18:08:06,029 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