./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_3+newton_1_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 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_3+newton_1_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-2699826-m [2024-08-14 14:13:45,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:13:45,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:13:45,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:13:45,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:13:45,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:13:45,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:13:45,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:13:45,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:13:45,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:13:45,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:13:45,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:13:45,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:13:45,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:13:45,623 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:13:45,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:13:45,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:13:45,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:13:45,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:13:45,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:13:45,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:13:45,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:13:45,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:13:45,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:13:45,629 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:13:45,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:13:45,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:13:45,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:13:45,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:13:45,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:13:45,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:13:45,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:13:45,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:13:45,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:13:45,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:13:45,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:13:45,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:13:45,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:13:45,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:13:45,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:13:45,633 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:13:45,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:13:45,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:13:45,634 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:13:45,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:13:45,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:13:45,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:13:45,870 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:13:45,871 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:13:45,871 INFO L431 ainManager$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_3+newton_1_7.yml/witness.yml [2024-08-14 14:13:45,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:13:45,946 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:13:45,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i [2024-08-14 14:13:47,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:13:47,439 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:13:47,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i [2024-08-14 14:13:47,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7025b346d/a45e9a1dcbf74ab5a66cd2c4e0804f88/FLAGf0987366d [2024-08-14 14:13:47,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7025b346d/a45e9a1dcbf74ab5a66cd2c4e0804f88 [2024-08-14 14:13:47,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:13:47,856 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:13:47,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:47,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:13:47,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:13:47,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:45" (1/2) ... [2024-08-14 14:13:47,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b288069 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:47, skipping insertion in model container [2024-08-14 14:13:47,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:45" (1/2) ... [2024-08-14 14:13:47,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@157618de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:47, skipping insertion in model container [2024-08-14 14:13:47,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:47" (2/2) ... [2024-08-14 14:13:47,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b288069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:47, skipping insertion in model container [2024-08-14 14:13:47,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:47" (2/2) ... [2024-08-14 14:13:47,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:13:48,006 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_3+newton_1_7.i[1226,1239] [2024-08-14 14:13:48,035 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_3+newton_1_7.i[2820,2833] [2024-08-14 14:13:48,037 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:48,048 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:13:48,082 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_3+newton_1_7.i[1226,1239] [2024-08-14 14:13:48,093 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_3+newton_1_7.i[2820,2833] [2024-08-14 14:13:48,098 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:48,120 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:13:48,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48 WrapperNode [2024-08-14 14:13:48,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:48,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:13:48,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:13:48,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:13:48,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,162 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:13:48,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:13:48,186 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:13:48,187 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:13:48,187 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:13:48,188 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (1/1) ... [2024-08-14 14:13:48,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:13:48,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:13:48,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:13:48,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:13:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:13:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:13:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:13:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:13:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:13:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:13:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:13:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:13:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:13:48,314 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:13:48,316 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:13:48,441 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-08-14 14:13:48,442 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:13:48,450 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:13:48,450 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:13:48,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:13:48 BoogieIcfgContainer [2024-08-14 14:13:48,450 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:13:48,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:13:48,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:13:48,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:13:48,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:45" (1/4) ... [2024-08-14 14:13:48,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2bd56 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:13:48, skipping insertion in model container [2024-08-14 14:13:48,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:13:47" (2/4) ... [2024-08-14 14:13:48,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2bd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:13:48, skipping insertion in model container [2024-08-14 14:13:48,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:48" (3/4) ... [2024-08-14 14:13:48,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2bd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:13:48, skipping insertion in model container [2024-08-14 14:13:48,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:13:48" (4/4) ... [2024-08-14 14:13:48,457 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_7.i [2024-08-14 14:13:48,457 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:13:48,474 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:13:48,474 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:13:48,499 INFO L92 WitnessUtils]: Constructing product of automaton with 60 states and violation witness of the following lengths: [11] [2024-08-14 14:13:48,507 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 60 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 42 states have internal predecessors, (50), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-08-14 14:13:48,552 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 94 states to 26 states. [2024-08-14 14:13:48,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:13:48,571 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;@cb13954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:13:48,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:13:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:13:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:13:48,576 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:13:48,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:13:48,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:13:48,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:13:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2114843466, now seen corresponding path program 1 times [2024-08-14 14:13:48,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:13:48,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320151055] [2024-08-14 14:13:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:13:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:13:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:13:48,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:13:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:13:48,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:13:48,707 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:13:48,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:13:48,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:13:48,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:13:48,714 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:13:48,719 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:13:48,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:13:48 BoogieIcfgContainer [2024-08-14 14:13:48,732 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:13:48,734 INFO L158 Benchmark]: Toolchain (without parser) took 877.59ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 104.3MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:48,734 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:48,735 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:13:48,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.82ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 136.2MB in the end (delta: -42.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-08-14 14:13:48,736 INFO L158 Benchmark]: Boogie Preprocessor took 59.82ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 138.9MB in the end (delta: -2.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-08-14 14:13:48,736 INFO L158 Benchmark]: IcfgBuilder took 264.32ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 123.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:13:48,737 INFO L158 Benchmark]: TraceAbstraction took 280.69ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 104.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:13:48,739 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 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.82ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 136.2MB in the end (delta: -42.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.82ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 138.9MB in the end (delta: -2.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * IcfgBuilder took 264.32ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 123.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 280.69ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 104.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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 93. 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); [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, 63 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:13:48,764 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_3+newton_1_7.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_3+newton_1_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-2699826-m [2024-08-14 14:13:50,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:13:50,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:13:50,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:13:50,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:13:50,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:13:50,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:13:50,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:13:50,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:13:50,788 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:13:50,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:13:50,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:13:50,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:13:50,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:13:50,790 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:13:50,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:13:50,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:13:50,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:13:50,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:13:50,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:13:50,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:13:50,793 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:13:50,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:13:50,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:13:50,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:13:50,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:13:50,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:13:50,795 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:13:50,795 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:13:50,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:13:50,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:13:50,799 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:13:50,799 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:13:50,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:13:50,800 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:13:50,800 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:13:51,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:13:51,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:13:51,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:13:51,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:13:51,077 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:13:51,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i [2024-08-14 14:13:52,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:13:52,601 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:13:52,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_1_7.i [2024-08-14 14:13:52,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e874a6e5/8c00e571b0c641b897f7b392ae1486b1/FLAGcad162edc [2024-08-14 14:13:52,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e874a6e5/8c00e571b0c641b897f7b392ae1486b1 [2024-08-14 14:13:52,633 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:13:52,640 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:13:52,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_3+newton_1_7.yml/witness.yml [2024-08-14 14:13:52,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:13:52,695 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:13:52,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:52,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:13:52,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:13:52,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:52" (1/2) ... [2024-08-14 14:13:52,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af2ac96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:52, skipping insertion in model container [2024-08-14 14:13:52,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:13:52" (1/2) ... [2024-08-14 14:13:52,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50428bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:13:52, skipping insertion in model container [2024-08-14 14:13:52,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:52" (2/2) ... [2024-08-14 14:13:52,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af2ac96 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52, skipping insertion in model container [2024-08-14 14:13:52,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:52" (2/2) ... [2024-08-14 14:13:52,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:13:52,844 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_3+newton_1_7.i[1226,1239] [2024-08-14 14:13:52,870 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_3+newton_1_7.i[2820,2833] [2024-08-14 14:13:52,875 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:52,887 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:13:52,898 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_3+newton_1_7.i[1226,1239] [2024-08-14 14:13:52,920 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_3+newton_1_7.i[2820,2833] [2024-08-14 14:13:52,923 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:13:52,960 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:13:52,972 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52 WrapperNode [2024-08-14 14:13:52,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:13:52,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:13:52,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:13:52,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:13:52,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:52,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,023 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:13:53,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:13:53,045 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:13:53,048 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:13:53,049 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:13:53,049 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (1/1) ... [2024-08-14 14:13:53,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:13:53,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:13:53,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:13:53,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:13:53,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:13:53,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:13:53,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:13:53,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:13:53,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:13:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:13:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:13:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:13:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:13:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:13:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:13:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:13:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:13:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:13:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:13:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:13:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:13:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:13:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:13:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:13:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:13:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:13:53,216 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:13:53,220 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:18,030 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:18,030 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:18,040 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:18,040 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:18,041 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:18 BoogieIcfgContainer [2024-08-14 14:14:18,041 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:18,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:18,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:18,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:18,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:13:52" (1/4) ... [2024-08-14 14:14:18,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76310943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:18, skipping insertion in model container [2024-08-14 14:14:18,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:13:52" (2/4) ... [2024-08-14 14:14:18,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76310943 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:18, skipping insertion in model container [2024-08-14 14:14:18,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:13:52" (3/4) ... [2024-08-14 14:14:18,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76310943 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:18, skipping insertion in model container [2024-08-14 14:14:18,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:18" (4/4) ... [2024-08-14 14:14:18,048 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_7.i [2024-08-14 14:14:18,049 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:18,064 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:18,064 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:18,086 INFO L92 WitnessUtils]: Constructing product of automaton with 58 states and violation witness of the following lengths: [11] [2024-08-14 14:14:18,088 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 58 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 41 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-08-14 14:14:18,143 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 90 states to 26 states. [2024-08-14 14:14:18,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:18,165 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;@6325bd28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:18,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:14:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:14:18,170 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:18,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:14:18,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:18,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1179027729, now seen corresponding path program 1 times [2024-08-14 14:14:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:14:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341783394] [2024-08-14 14:14:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:18,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:14:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:14:18,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-14 14:14:18,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-14 14:14:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:26,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:14:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:30,423 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:14:30,425 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:14:30,425 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:14:30,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:14:30,483 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-08-14 14:14:30,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-14 14:14:30,635 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:14:30,638 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:14:30,659 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:14:30 BoogieIcfgContainer [2024-08-14 14:14:30,660 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:14:30,662 INFO L158 Benchmark]: Toolchain (without parser) took 37965.41ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 37.9MB in the beginning and 58.7MB in the end (delta: -20.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-08-14 14:14:30,662 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:30,662 INFO L158 Benchmark]: Witness Parser took 0.94ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 40.2MB in the end (delta: 178.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:30,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.98ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 37.7MB in the beginning and 71.2MB in the end (delta: -33.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-08-14 14:14:30,664 INFO L158 Benchmark]: Boogie Preprocessor took 68.06ms. Allocated memory is still 92.3MB. Free memory was 71.2MB in the beginning and 68.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:30,665 INFO L158 Benchmark]: IcfgBuilder took 24995.86ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 51.4MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:14:30,666 INFO L158 Benchmark]: TraceAbstraction took 12616.65ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 58.7MB in the end (delta: -7.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:30,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.94ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 40.2MB in the end (delta: 178.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.98ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 37.7MB in the beginning and 71.2MB in the end (delta: -33.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.06ms. Allocated memory is still 92.3MB. Free memory was 71.2MB in the beginning and 68.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 24995.86ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 51.4MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12616.65ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 58.7MB in the end (delta: -7.7MB). 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: 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=-1.2482489347457886] [L93] CALL, EXPR f(IN) VAL [\old(x)=-1.2482489347457886] [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)=-1.2482489347457886, \result=-0.9502847790718079] [L93] RET, EXPR f(IN) VAL [IN=-1.2482489347457886] [L93] CALL, EXPR fp(IN) VAL [\old(x)=-1.2482489347457886] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.2482489347457886, \result=0.3273475766181946] [L93] RET, EXPR fp(IN) VAL [IN=-1.2482489347457886] [L93] float x = IN - f(IN)/fp(IN); [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, 67 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:14:30,766 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE