./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_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 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_2_6.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_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-2699826-m [2024-08-14 14:14:26,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:26,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:14:26,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:26,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:26,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:26,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:26,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:26,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:26,637 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:26,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:26,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:26,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:26,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:26,639 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:26,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:26,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:26,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:26,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:14:26,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:26,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:26,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:26,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:26,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:26,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:26,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:26,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:26,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:26,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:26,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:26,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:26,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:26,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:26,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:26,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:26,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:26,835 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:26,836 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:26,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i [2024-08-14 14:14:28,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:28,205 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:28,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i [2024-08-14 14:14:28,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cba4ca8/0e6a59de88a64d6daae5bd3c3baf94fd/FLAGefba4c39d [2024-08-14 14:14:28,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cba4ca8/0e6a59de88a64d6daae5bd3c3baf94fd [2024-08-14 14:14:28,223 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:28,223 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:28,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_6.yml/witness.yml [2024-08-14 14:14:28,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:28,267 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:28,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:28,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:28,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:28,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:28" (1/2) ... [2024-08-14 14:14:28,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795d212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:28" (1/2) ... [2024-08-14 14:14:28,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f917e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:28" (2/2) ... [2024-08-14 14:14:28,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795d212c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:28" (2/2) ... [2024-08-14 14:14:28,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:28,413 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[1224,1237] [2024-08-14 14:14:28,440 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[2827,2840] [2024-08-14 14:14:28,445 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:28,453 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:28,486 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[1224,1237] [2024-08-14 14:14:28,498 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[2827,2840] [2024-08-14 14:14:28,501 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:28,517 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:28,517 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:28 WrapperNode [2024-08-14 14:14:28,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:28,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:28,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:28,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:28,528 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,529 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,535 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,550 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 14:14:28,551 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,551 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,561 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,562 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,563 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:28,568 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:28,568 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:28,568 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:28,568 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 02:14:28" (1/1) ... [2024-08-14 14:14:28,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:28,599 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 14:14:28,605 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 14:14:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:28,642 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:28,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:28,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:14:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:28,717 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:28,720 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:28,858 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:28,858 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:28,865 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:28,865 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:28,866 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:28 BoogieIcfgContainer [2024-08-14 14:14:28,866 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:28,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:28,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:28,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:28,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:28" (1/4) ... [2024-08-14 14:14:28,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e5c6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:28" (2/4) ... [2024-08-14 14:14:28,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e5c6c4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,872 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 02:14:28" (3/4) ... [2024-08-14 14:14:28,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e5c6c4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:28, skipping insertion in model container [2024-08-14 14:14:28,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:28" (4/4) ... [2024-08-14 14:14:28,874 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_6.i [2024-08-14 14:14:28,874 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:28,889 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:28,889 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:28,907 INFO L92 WitnessUtils]: Constructing product of automaton with 65 states and violation witness of the following lengths: [15] [2024-08-14 14:14:28,910 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 65 states, 40 states have (on average 1.3) internal successors, (52), 42 states have internal predecessors, (52), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-08-14 14:14:28,967 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 108 states to 35 states. [2024-08-14 14:14:28,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:28,991 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;@3fd10513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:28,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2024-08-14 14:14:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-14 14:14:28,996 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:28,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:14:28,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:29,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash -269702855, now seen corresponding path program 1 times [2024-08-14 14:14:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:14:29,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206352518] [2024-08-14 14:14:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:29,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:14:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:29,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:14:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:29,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:14:29,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:14:29,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:14:29,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:14:29,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:14:29,133 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:14:29,136 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:14:29,146 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:14:29 BoogieIcfgContainer [2024-08-14 14:14:29,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:14:29,146 INFO L158 Benchmark]: Toolchain (without parser) took 879.21ms. Allocated memory is still 190.8MB. Free memory was 121.1MB in the beginning and 122.3MB in the end (delta: -1.2MB). Peak memory consumption was 710.7kB. Max. memory is 16.1GB. [2024-08-14 14:14:29,147 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:29,147 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 190.8MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:14:29,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.33ms. Allocated memory is still 190.8MB. Free memory was 121.0MB in the beginning and 161.4MB in the end (delta: -40.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-08-14 14:14:29,147 INFO L158 Benchmark]: Boogie Preprocessor took 48.24ms. Allocated memory is still 190.8MB. Free memory was 161.4MB in the beginning and 159.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:14:29,148 INFO L158 Benchmark]: IcfgBuilder took 298.19ms. Allocated memory is still 190.8MB. Free memory was 159.3MB in the beginning and 143.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:14:29,148 INFO L158 Benchmark]: TraceAbstraction took 278.31ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 122.3MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:14:29,150 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 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.08ms. Allocated memory is still 190.8MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.33ms. Allocated memory is still 190.8MB. Free memory was 121.0MB in the beginning and 161.4MB in the end (delta: -40.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.24ms. Allocated memory is still 190.8MB. Free memory was 161.4MB in the beginning and 159.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 298.19ms. Allocated memory is still 190.8MB. Free memory was 159.3MB in the beginning and 143.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 278.31ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 122.3MB in the end (delta: 20.2MB). 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 102. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L100] CALL, EXPR f(IN) VAL [\old(x)=110] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=110] [L100] RET, EXPR f(IN) VAL [IN=110] [L100] CALL, EXPR fp(IN) VAL [\old(x)=110] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=110] [L100] RET, EXPR fp(IN) VAL [IN=110] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=111] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=111] [L102] RET, EXPR f(x) VAL [IN=110, x=111] [L102] CALL, EXPR fp(x) VAL [\old(x)=111] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=111] [L102] RET, EXPR fp(x) VAL [IN=110, x=111] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=110] [L109] reach_error() VAL [IN=110] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 68 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-14 14:14:29,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_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-2699826-m [2024-08-14 14:14:30,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:14:30,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-14 14:14:30,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:14:30,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:14:31,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:14:31,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:14:31,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:14:31,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:14:31,023 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:14:31,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:14:31,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:14:31,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:14:31,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:14:31,024 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:14:31,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:14:31,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:14:31,027 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:14:31,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:14:31,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:14:31,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:14:31,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:14:31,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:14:31,028 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-14 14:14:31,028 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 14:14:31,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:14:31,029 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 14:14:31,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:14:31,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:14:31,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:14:31,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:14:31,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:14:31,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:14:31,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:14:31,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:14:31,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:14:31,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:14:31,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:14:31,032 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 14:14:31,032 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:14:31,033 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-14 14:14:31,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:14:31,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:14:31,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:14:31,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:14:31,297 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:14:31,298 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:14:31,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/gcd_4+newton_2_6.yml/witness.yml [2024-08-14 14:14:31,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:14:31,358 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:14:31,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i [2024-08-14 14:14:32,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:14:32,733 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:14:32,733 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i [2024-08-14 14:14:32,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62abac8e2/b878a90cf3ed4c9e9205acfb32ca23ff/FLAGa37bbb33c [2024-08-14 14:14:33,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62abac8e2/b878a90cf3ed4c9e9205acfb32ca23ff [2024-08-14 14:14:33,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:14:33,147 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:14:33,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:33,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:14:33,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:14:33,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:31" (1/2) ... [2024-08-14 14:14:33,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561f9af and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:33, skipping insertion in model container [2024-08-14 14:14:33,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:31" (1/2) ... [2024-08-14 14:14:33,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6aaa23a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:14:33, skipping insertion in model container [2024-08-14 14:14:33,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:33" (2/2) ... [2024-08-14 14:14:33,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561f9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33, skipping insertion in model container [2024-08-14 14:14:33,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:14:33" (2/2) ... [2024-08-14 14:14:33,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:14:33,304 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[1224,1237] [2024-08-14 14:14:33,325 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[2827,2840] [2024-08-14 14:14:33,326 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:33,338 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:14:33,357 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[1224,1237] [2024-08-14 14:14:33,369 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_4+newton_2_6.i[2827,2840] [2024-08-14 14:14:33,374 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:14:33,390 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:14:33,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33 WrapperNode [2024-08-14 14:14:33,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:14:33,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:14:33,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:14:33,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:14:33,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,433 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 14:14:33,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:14:33,461 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:14:33,461 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:14:33,461 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:14:33,462 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (1/1) ... [2024-08-14 14:14:33,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:14:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:14:33,487 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 14:14:33,489 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 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-14 14:14:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-08-14 14:14:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:14:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:14:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:14:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-14 14:14:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:14:33,590 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:14:33,592 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:14:55,380 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-08-14 14:14:55,381 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:14:55,387 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:14:55,388 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:14:55,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:55 BoogieIcfgContainer [2024-08-14 14:14:55,388 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:14:55,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:14:55,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:14:55,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:14:55,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:14:31" (1/4) ... [2024-08-14 14:14:55,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7349915e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:14:55, skipping insertion in model container [2024-08-14 14:14:55,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:14:33" (2/4) ... [2024-08-14 14:14:55,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7349915e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:55, skipping insertion in model container [2024-08-14 14:14:55,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:14:33" (3/4) ... [2024-08-14 14:14:55,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7349915e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:14:55, skipping insertion in model container [2024-08-14 14:14:55,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:14:55" (4/4) ... [2024-08-14 14:14:55,394 INFO L119 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_6.i [2024-08-14 14:14:55,394 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:14:55,408 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:14:55,409 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:14:55,426 INFO L92 WitnessUtils]: Constructing product of automaton with 63 states and violation witness of the following lengths: [15] [2024-08-14 14:14:55,428 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-08-14 14:14:55,486 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 104 states to 35 states. [2024-08-14 14:14:55,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:14:55,502 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;@2d305853, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:14:55,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:14:55,503 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2024-08-14 14:14:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-08-14 14:14:55,506 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:14:55,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:14:55,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting main2Err0ASSERT_VIOLATIONERROR_FUNCTION === [main2Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:14:55,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:14:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash -237813735, now seen corresponding path program 1 times [2024-08-14 14:14:55,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-14 14:14:55,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23225820] [2024-08-14 14:14:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:14:55,522 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 14:14:55,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-14 14:14:55,525 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 14:14:55,525 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 14:14:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:14:58,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:15:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:15:17,068 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-14 14:15:17,069 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:15:17,070 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location main2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:15:17,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:15:17,152 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 14:15:17,272 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 14:15:17,276 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:15:17,279 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:15:17,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:15:17 BoogieIcfgContainer [2024-08-14 14:15:17,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:15:17,298 INFO L158 Benchmark]: Toolchain (without parser) took 44151.76ms. Allocated memory is still 81.8MB. Free memory was 50.8MB in the beginning and 41.7MB in the end (delta: 9.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-08-14 14:15:17,299 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 58.7MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:15:17,299 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 58.7MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:15:17,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.35ms. Allocated memory is still 81.8MB. Free memory was 50.6MB in the beginning and 58.8MB in the end (delta: -8.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-08-14 14:15:17,301 INFO L158 Benchmark]: Boogie Preprocessor took 68.59ms. Allocated memory is still 81.8MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:15:17,301 INFO L158 Benchmark]: IcfgBuilder took 21926.95ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 38.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:15:17,301 INFO L158 Benchmark]: TraceAbstraction took 21908.40ms. Allocated memory is still 81.8MB. Free memory was 37.8MB in the beginning and 41.7MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:15:17,303 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 0.14ms. Allocated memory is still 58.7MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 58.7MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.35ms. Allocated memory is still 81.8MB. Free memory was 50.6MB in the beginning and 58.8MB in the end (delta: -8.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.59ms. Allocated memory is still 81.8MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 21926.95ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 38.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21908.40ms. Allocated memory is still 81.8MB. Free memory was 37.8MB in the beginning and 41.7MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) VAL [\old(cond)=1] [L82] COND FALSE !(!cond) VAL [\old(cond)=1] [L98] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) VAL [IN=1.1886889934539795] [L100] CALL, EXPR f(IN) VAL [\old(x)=1.1886889934539795] [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)=1.1886889934539795, \result=0.9291987419128418] [L100] RET, EXPR f(IN) VAL [IN=1.1886889934539795] [L100] CALL, EXPR fp(IN) VAL [\old(x)=1.1886889934539795] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1886889934539795, \result=0.38061556220054626] [L100] RET, EXPR fp(IN) VAL [IN=1.1886889934539795] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=-1.2526161670684814] [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)=-1.2526161670684814, \result=-0.9517057538032532] [L102] RET, EXPR f(x) VAL [x=-1.2526161670684814] [L102] CALL, EXPR fp(x) VAL [\old(x)=-1.2526161670684814] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.2526161670684814, \result=0.32342103123664856] [L102] RET, EXPR fp(x) VAL [x=-1.2526161670684814] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) [L109] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 72 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 21.9s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 2.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:15:17,384 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