./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_2+newton_1_6.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_2+newton_1_6.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:05:07,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:05:07,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:05:07,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:05:07,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:05:07,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:05:07,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:05:07,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:05:07,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:05:07,293 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:05:07,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:05:07,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:05:07,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:05:07,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:05:07,294 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:05:07,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:05:07,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:05:07,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:05:07,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:05:07,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:05:07,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:05:07,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:05:07,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:05:07,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:05:07,299 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:05:07,299 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:05:07,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:05:07,300 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:05:07,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:05:07,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:05:07,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:05:07,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:05:07,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:05:07,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:05:07,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:05:07,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:05:07,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:05:07,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:05:07,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:05:07,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:05:07,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:05:07,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:05:07,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:05:07,306 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:05:07,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:05:07,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:05:07,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:05:07,550 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:05:07,550 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:05:07,551 INFO L431 ainManager$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_2+newton_1_6.yml/witness.yml [2024-08-15 18:05:07,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:05:07,612 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:05:07,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i [2024-08-15 18:05:08,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:05:09,078 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:05:09,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i [2024-08-15 18:05:09,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b31f7d0/f85a7954116447a1b0ed7c8fb6b3ced3/FLAGa9f6f49ed [2024-08-15 18:05:09,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b31f7d0/f85a7954116447a1b0ed7c8fb6b3ced3 [2024-08-15 18:05:09,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:05:09,098 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:05:09,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:05:09,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:05:09,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:05:09,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:07" (1/2) ... [2024-08-15 18:05:09,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f46b8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:07" (1/2) ... [2024-08-15 18:05:09,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36714c37 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:05:09" (2/2) ... [2024-08-15 18:05:09,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f46b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:05:09" (2/2) ... [2024-08-15 18:05:09,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:05:09,303 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_2+newton_1_6.i[1226,1239] [2024-08-15 18:05:09,340 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_2+newton_1_6.i[2820,2833] [2024-08-15 18:05:09,341 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:05:09,352 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:05:09,362 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_2+newton_1_6.i[1226,1239] [2024-08-15 18:05:09,372 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_2+newton_1_6.i[2820,2833] [2024-08-15 18:05:09,373 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:05:09,388 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:05:09,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09 WrapperNode [2024-08-15 18:05:09,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:05:09,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:05:09,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:05:09,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:05:09,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,428 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-15 18:05:09,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:05:09,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:05:09,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:05:09,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:05:09,454 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (1/1) ... [2024-08-15 18:05:09,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:05:09,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:05:09,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:05:09,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:05:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:05:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:05:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:05:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:05:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:05:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:05:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:05:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:05:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:05:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:05:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:05:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:05:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:05:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:05:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:05:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:05:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:05:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:05:09,664 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:05:09,667 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:05:09,848 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-08-15 18:05:09,848 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:05:09,858 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:05:09,858 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:05:09,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:09 BoogieIcfgContainer [2024-08-15 18:05:09,860 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:05:09,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:05:09,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:05:09,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:05:09,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:07" (1/4) ... [2024-08-15 18:05:09,865 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:05:09,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aecdb81 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:05:09" (2/4) ... [2024-08-15 18:05:09,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aecdb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:09" (3/4) ... [2024-08-15 18:05:09,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aecdb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:05:09, skipping insertion in model container [2024-08-15 18:05:09,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:09" (4/4) ... [2024-08-15 18:05:09,873 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2024-08-15 18:05:09,888 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:05:09,888 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:05:09,917 INFO L90 WitnessUtils]: Constructing product of automaton with 60 states and violation witness of the following lengths: [11] [2024-08-15 18:05:09,970 INFO L95 WitnessUtils]: Product has 94 reachable states. [2024-08-15 18:05:09,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:05:09,996 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;@3626bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:05:09,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:05:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2024-08-15 18:05:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-15 18:05:10,004 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:05:10,005 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] [2024-08-15 18:05:10,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:05:10,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:05:10,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2114843466, now seen corresponding path program 1 times [2024-08-15 18:05:10,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:05:10,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723385876] [2024-08-15 18:05:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:05:10,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:05:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:05:10,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:05:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:05:10,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:05:10,187 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:05:10,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:05:10,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:05:10,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:05:10,197 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:05:10,201 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:05:10,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:05:10 BoogieIcfgContainer [2024-08-15 18:05:10,219 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:05:10,221 INFO L158 Benchmark]: Toolchain (without parser) took 1122.67ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 82.9MB in the end (delta: 13.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-08-15 18:05:10,222 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.2MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:10,223 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory was 48.0MB in the beginning and 47.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:10,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.31ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 120.1MB in the end (delta: -23.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-15 18:05:10,225 INFO L158 Benchmark]: Boogie Preprocessor took 62.76ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 117.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:05:10,226 INFO L158 Benchmark]: IcfgBuilder took 406.81ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 101.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:05:10,227 INFO L158 Benchmark]: TraceAbstraction took 358.31ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 82.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-15 18:05:10,228 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 0.12ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.2MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory was 48.0MB in the beginning and 47.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.31ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 120.1MB in the end (delta: -23.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.76ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 117.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 406.81ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 101.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 358.31ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 82.9MB in the end (delta: 18.3MB). 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 > -1.2f && IN < 1.2f) VAL [\old(cond)=1] [L75] COND FALSE !(!cond) VAL [\old(cond)=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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: 0.3s, 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=94occurred 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 [2024-08-15 18:05:10,255 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_2+newton_1_6.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_2+newton_1_6.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:05:12,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:05:12,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:05:12,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:05:12,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:05:12,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:05:12,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:05:12,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:05:12,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:05:12,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:05:12,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:05:12,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:05:12,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:05:12,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:05:12,426 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:05:12,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:05:12,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:05:12,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:05:12,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:05:12,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:05:12,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:05:12,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:05:12,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:05:12,429 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:05:12,429 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:05:12,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:05:12,430 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:05:12,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:05:12,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:05:12,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:05:12,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:05:12,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:05:12,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:05:12,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:05:12,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:05:12,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:05:12,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:05:12,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:05:12,432 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:05:12,433 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:05:12,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:05:12,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:05:12,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:05:12,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:05:12,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:05:12,434 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:05:12,434 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:05:12,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:05:12,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:05:12,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:05:12,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:05:12,748 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:05:12,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i [2024-08-15 18:05:14,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:05:14,317 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:05:14,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_2+newton_1_6.i [2024-08-15 18:05:14,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683f3a47e/0c2d93698acc4628b1b3610eb299fd7b/FLAG4e3844c6c [2024-08-15 18:05:14,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683f3a47e/0c2d93698acc4628b1b3610eb299fd7b [2024-08-15 18:05:14,709 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:05:14,712 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:05:14,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_2+newton_1_6.yml/witness.yml [2024-08-15 18:05:14,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:05:14,774 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:05:14,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:05:14,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:05:14,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:05:14,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:05:14" (1/2) ... [2024-08-15 18:05:14,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e79f6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:14, skipping insertion in model container [2024-08-15 18:05:14,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:05:14" (1/2) ... [2024-08-15 18:05:14,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3780ce08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:05:14, skipping insertion in model container [2024-08-15 18:05:14,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:14" (2/2) ... [2024-08-15 18:05:14,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e79f6ac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:14, skipping insertion in model container [2024-08-15 18:05:14,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:14" (2/2) ... [2024-08-15 18:05:14,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:05:14,966 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_2+newton_1_6.i[1226,1239] [2024-08-15 18:05:15,001 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_2+newton_1_6.i[2820,2833] [2024-08-15 18:05:15,006 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:05:15,023 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:05:15,037 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_2+newton_1_6.i[1226,1239] [2024-08-15 18:05:15,049 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_2+newton_1_6.i[2820,2833] [2024-08-15 18:05:15,053 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:05:15,072 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:05:15,072 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15 WrapperNode [2024-08-15 18:05:15,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:05:15,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:05:15,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:05:15,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:05:15,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,124 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-08-15 18:05:15,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:05:15,151 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:05:15,151 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:05:15,151 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:05:15,152 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (1/1) ... [2024-08-15 18:05:15,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:05:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:05:15,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:05:15,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:05:15,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:05:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:05:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:05:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:05:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:05:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:05:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-15 18:05:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:05:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:05:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:05:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-15 18:05:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:05:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-15 18:05:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:05:15,347 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:05:15,349 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:05:41,753 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-15 18:05:41,753 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:05:41,761 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:05:41,761 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:05:41,762 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:41 BoogieIcfgContainer [2024-08-15 18:05:41,762 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:05:41,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:05:41,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:05:41,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:05:41,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:05:14" (1/4) ... [2024-08-15 18:05:41,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7b4231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:05:41, skipping insertion in model container [2024-08-15 18:05:41,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:05:14" (2/4) ... [2024-08-15 18:05:41,768 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:05:41,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7b4231 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:05:41, skipping insertion in model container [2024-08-15 18:05:41,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:05:15" (3/4) ... [2024-08-15 18:05:41,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7b4231 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:05:41, skipping insertion in model container [2024-08-15 18:05:41,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:05:41" (4/4) ... [2024-08-15 18:05:41,774 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2024-08-15 18:05:41,792 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:05:41,792 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:05:41,816 INFO L90 WitnessUtils]: Constructing product of automaton with 58 states and violation witness of the following lengths: [11] [2024-08-15 18:05:41,869 INFO L95 WitnessUtils]: Product has 90 reachable states. [2024-08-15 18:05:41,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:05:41,888 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;@5ea8ab95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:05:41,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:05:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-08-15 18:05:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-08-15 18:05:41,893 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:05:41,894 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] [2024-08-15 18:05:41,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:05:41,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:05:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1179027729, now seen corresponding path program 1 times [2024-08-15 18:05:41,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:05:41,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714114714] [2024-08-15 18:05:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:05:41,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:05:41,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:05:41,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-15 18:05:41,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-15 18:05:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:05:49,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:05:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:05:57,178 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:05:57,180 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:05:57,181 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:05:57,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:05:57,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-08-15 18:05:57,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:05:57,387 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:05:57,391 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:05:57,407 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:05:57 BoogieIcfgContainer [2024-08-15 18:05:57,408 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:05:57,409 INFO L158 Benchmark]: Toolchain (without parser) took 42635.50ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 30.8MB in the beginning and 58.1MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:57,409 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 26.4MB in the beginning and 26.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:57,409 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 67.1MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:57,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.10ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 34.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:05:57,410 INFO L158 Benchmark]: Boogie Preprocessor took 77.02ms. Allocated memory is still 67.1MB. Free memory was 34.9MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:05:57,410 INFO L158 Benchmark]: IcfgBuilder took 26611.01ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 53.5MB in the end (delta: -21.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-08-15 18:05:57,410 INFO L158 Benchmark]: TraceAbstraction took 15643.92ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 58.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:05:57,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 26.4MB in the beginning and 26.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 67.1MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.10ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 34.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.02ms. Allocated memory is still 67.1MB. Free memory was 34.9MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 26611.01ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 53.5MB in the end (delta: -21.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15643.92ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 58.1MB in the end (delta: -5.2MB). 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 > -1.2f && IN < 1.2f) VAL [\old(cond)=1] [L75] COND FALSE !(!cond) VAL [\old(cond)=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) VAL [IN=-0.6973680853843689] [L93] CALL, EXPR f(IN) VAL [\old(x)=-0.6973680853843689] [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)=-0.6973680853843689, \result=-0.6422341465950012] [L93] RET, EXPR f(IN) VAL [IN=-0.6973680853843689] [L93] CALL, EXPR fp(IN) VAL [\old(x)=-0.6973680853843689] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.6973680853843689, \result=0.7668531537055969] [L93] RET, EXPR fp(IN) VAL [IN=-0.6973680853843689] [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: 15.6s, 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=90occurred 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, 7.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-15 18:05:57,526 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