./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_8.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:14:17,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:17,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:14:17,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:17,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:17,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:17,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:17,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:17,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:17,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:17,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:17,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:17,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:17,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:17,857 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:17,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:17,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:17,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:17,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:14:17,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:17,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:17,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:17,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:17,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:17,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:17,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:17,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:17,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:17,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:17,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:17,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:17,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:17,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:17,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:17,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:17,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:17,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:14:17,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:14:17,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:17,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:17,868 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:17,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:17,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:17,869 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:18,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:18,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:18,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:18,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:18,153 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:18,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i [2024-08-14 14:14:19,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:19,766 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:19,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i [2024-08-14 14:14:19,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b36ef732/b249d7f1702a42d590151fe216c62d8d/FLAG16bc99540 [2024-08-14 14:14:19,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b36ef732/b249d7f1702a42d590151fe216c62d8d [2024-08-14 14:14:19,795 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:19,796 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:19,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_8.yml/witness.yml [2024-08-14 14:14:19,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:19,876 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:19,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:19,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:19,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:19,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:19" (1/2) ... [2024-08-14 14:14:19,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4140c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:19, skipping insertion in model container [2024-08-14 14:14:19,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:19" (1/2) ... [2024-08-14 14:14:19,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6121d1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:19, skipping insertion in model container [2024-08-14 14:14:19,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:19" (2/2) ... [2024-08-14 14:14:19,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4140c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:19, skipping insertion in model container [2024-08-14 14:14:19,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:19" (2/2) ... [2024-08-14 14:14:19,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:20,058 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[1224,1237] [2024-08-14 14:14:20,088 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[2806,2819] [2024-08-14 14:14:20,089 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:20,102 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:20,115 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[1224,1237] [2024-08-14 14:14:20,125 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[2806,2819] [2024-08-14 14:14:20,126 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:20,152 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:20,152 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20 WrapperNode [2024-08-14 14:14:20,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:20,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:20,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:20,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:20,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,188 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:14:20,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:20,200 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:20,200 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:20,200 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:20,201 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (1/1) ... [2024-08-14 14:14:20,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:20,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:14:20,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:14:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:14:20,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:20,354 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:20,356 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:20,519 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:20,520 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:20,528 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:20,528 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:20,528 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:20 BoogieIcfgContainer [2024-08-14 14:14:20,528 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:20,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:20,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:20,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:20,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:19" (1/4) ... [2024-08-14 14:14:20,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a39b77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:20, skipping insertion in model container [2024-08-14 14:14:20,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:19" (2/4) ... [2024-08-14 14:14:20,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a39b77d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:20, skipping insertion in model container [2024-08-14 14:14:20,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:20" (3/4) ... [2024-08-14 14:14:20,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a39b77d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:20, skipping insertion in model container [2024-08-14 14:14:20,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:20" (4/4) ... [2024-08-14 14:14:20,537 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_8.i [2024-08-14 14:14:20,537 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:20,554 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:20,554 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:20,581 INFO L92 WitnessUtils]: Constructing product of automaton with 62 states and violation witness of the following lengths: [11] [2024-08-14 14:14:20,590 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 62 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 41 states have internal predecessors, (51), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-08-14 14:14:20,668 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 96 states to 26 states. [2024-08-14 14:14:20,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:20,699 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;@6db96bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:20,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:14:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:14:20,706 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:20,707 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 14:14:20,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:20,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1666045295, now seen corresponding path program 1 times [2024-08-14 14:14:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:14:20,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551035922] [2024-08-14 14:14:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:20,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:14:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:20,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:14:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:20,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:14:20,891 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:14:20,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:14:20,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:14:20,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:14:20,900 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:14:20,904 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:14:20,923 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:14:20 BoogieIcfgContainer [2024-08-14 14:14:20,924 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:14:20,925 INFO L158 Benchmark]: Toolchain (without parser) took 1053.01ms. Allocated memory is still 167.8MB. Free memory was 95.5MB in the beginning and 93.5MB in the end (delta: 1.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-08-14 14:14:20,927 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 109.1MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:20,927 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:20,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.91ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 131.3MB in the end (delta: -35.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-08-14 14:14:20,928 INFO L158 Benchmark]: Boogie Preprocessor took 45.40ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 128.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:14:20,928 INFO L158 Benchmark]: IcfgBuilder took 328.41ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 113.2MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:14:20,928 INFO L158 Benchmark]: TraceAbstraction took 393.82ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 93.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:14:20,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 109.1MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.91ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 131.3MB in the end (delta: -35.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.40ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 128.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 328.41ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 113.2MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 393.82ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 93.5MB in the end (delta: 19.1MB). 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: 109]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -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); [L108] COND TRUE !(x < 0.1) VAL [IN=110] [L109] reach_error() VAL [IN=110] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:14:20,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_8.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:14:23,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:23,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:14:23,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:23,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:23,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:23,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:23,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:23,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:23,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:23,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:23,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:23,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:23,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:23,263 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:23,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:23,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:23,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:23,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:23,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:23,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:23,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:23,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:23,272 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:14:23,272 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:14:23,272 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:23,272 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:14:23,272 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:23,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:23,273 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:23,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:23,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:23,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:23,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:23,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:23,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:23,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:23,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:23,275 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:14:23,276 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:14:23,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:23,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:23,278 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:23,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:23,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:23,278 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:14:23,278 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:23,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:23,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:23,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:23,604 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:23,605 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:23,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_1_8.yml/witness.yml [2024-08-14 14:14:23,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:23,672 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:23,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i [2024-08-14 14:14:25,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:25,376 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:25,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i [2024-08-14 14:14:25,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bba905ee/ea01f705798a4b09934bdaf46d002f0a/FLAGe68a9237d [2024-08-14 14:14:25,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bba905ee/ea01f705798a4b09934bdaf46d002f0a [2024-08-14 14:14:25,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:25,763 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:25,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:25,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:25,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:25,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:23" (1/2) ... [2024-08-14 14:14:25,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee89caa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:25, skipping insertion in model container [2024-08-14 14:14:25,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:23" (1/2) ... [2024-08-14 14:14:25,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46857b92 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:25, skipping insertion in model container [2024-08-14 14:14:25,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:25" (2/2) ... [2024-08-14 14:14:25,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee89caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:25, skipping insertion in model container [2024-08-14 14:14:25,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:25" (2/2) ... [2024-08-14 14:14:25,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:25,982 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[1224,1237] [2024-08-14 14:14:26,023 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[2806,2819] [2024-08-14 14:14:26,027 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:26,043 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:26,057 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[1224,1237] [2024-08-14 14:14:26,070 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_1_8.i[2806,2819] [2024-08-14 14:14:26,073 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:26,093 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:26,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26 WrapperNode [2024-08-14 14:14:26,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:26,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:26,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:26,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:26,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,150 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-14 14:14:26,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:26,184 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:26,184 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:26,184 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:26,185 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (1/1) ... [2024-08-14 14:14:26,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:26,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:26,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:14:26,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:14:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:14:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:14:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:14:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:14:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:26,394 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:26,397 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:49,147 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:49,147 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:49,155 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:49,156 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:49,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:49 BoogieIcfgContainer [2024-08-14 14:14:49,156 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:49,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:49,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:49,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:49,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:23" (1/4) ... [2024-08-14 14:14:49,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e005d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:49, skipping insertion in model container [2024-08-14 14:14:49,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:25" (2/4) ... [2024-08-14 14:14:49,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e005d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:49, skipping insertion in model container [2024-08-14 14:14:49,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:26" (3/4) ... [2024-08-14 14:14:49,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e005d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:49, skipping insertion in model container [2024-08-14 14:14:49,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:49" (4/4) ... [2024-08-14 14:14:49,173 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_8.i [2024-08-14 14:14:49,174 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:49,192 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:49,192 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:49,213 INFO L92 WitnessUtils]: Constructing product of automaton with 60 states and violation witness of the following lengths: [11] [2024-08-14 14:14:49,216 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 60 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-08-14 14:14:49,277 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 92 states to 26 states. [2024-08-14 14:14:49,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:49,301 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;@1e82046f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:49,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2024-08-14 14:14:49,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-14 14:14:49,306 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:49,306 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 14:14:49,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:49,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:49,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1693106264, now seen corresponding path program 1 times [2024-08-14 14:14:49,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:14:49,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453059712] [2024-08-14 14:14:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:49,324 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 14:14:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:14:49,326 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 14:14:49,327 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 14:14:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:53,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:15:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:15:00,352 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:15:00,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:15:00,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:15:00,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:15:00,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-08-14 14:15:00,560 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 14:15:00,564 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:15:00,567 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:15:00,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:15:00 BoogieIcfgContainer [2024-08-14 14:15:00,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:15:00,592 INFO L158 Benchmark]: Toolchain (without parser) took 34828.64ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 42.7MB in the end (delta: 4.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-08-14 14:15:00,592 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:15:00,593 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:15:00,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.40ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 33.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:15:00,595 INFO L158 Benchmark]: Boogie Preprocessor took 86.83ms. Allocated memory is still 65.0MB. Free memory was 33.2MB in the beginning and 30.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:15:00,595 INFO L158 Benchmark]: IcfgBuilder took 22972.85ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 29.4MB in the end (delta: 970.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:15:00,595 INFO L158 Benchmark]: TraceAbstraction took 11424.24ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.0MB in the end (delta: 438.8kB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-08-14 14:15:00,597 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 0.17ms. Allocated memory is still 52.4MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.40ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 33.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.83ms. Allocated memory is still 65.0MB. Free memory was 33.2MB in the beginning and 30.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 22972.85ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 29.4MB in the end (delta: 970.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11424.24ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.0MB in the end (delta: 438.8kB). Peak memory consumption was 21.3MB. 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=-1.458478331565857] [L100] CALL, EXPR f(IN) VAL [\old(x)=-1.458478331565857] [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)=-1.458478331565857, \result=-0.9991887211799622] [L100] RET, EXPR f(IN) VAL [IN=-1.458478331565857] [L100] CALL, EXPR fp(IN) VAL [\old(x)=-1.458478331565857] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.458478331565857, \result=0.13832205533981323] [L100] RET, EXPR fp(IN) VAL [IN=-1.458478331565857] [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.4s 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 14:15:00,691 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