./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound20.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/geo1-u_unwindbound20.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/nla-digbench-scaling/geo1-u_unwindbound20.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/geo1-u_unwindbound20.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 14:31:38,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:31:38,845 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:31:38,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:31:38,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:31:38,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:31:38,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:31:38,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:31:38,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:31:38,891 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:31:38,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:31:38,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:31:38,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:31:38,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:31:38,895 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:31:38,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:31:38,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:31:38,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:31:38,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:31:38,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:31:38,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:31:38,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:31:38,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:31:38,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:31:38,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:31:38,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:31:38,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:31:38,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:31:38,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:31:38,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:31:38,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:31:38,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:31:38,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:31:38,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:31:38,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:31:38,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:31:38,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:31:38,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:31:38,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:31:38,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:31:38,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:31:38,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:31:38,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:31:38,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:31:39,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:31:39,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:31:39,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:31:39,162 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:31:39,163 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:31:39,164 INFO L431 ainManager$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/geo1-u_unwindbound20.yml/witness.yml [2024-08-14 14:31:39,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:31:39,259 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:31:39,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound20.c [2024-08-14 14:31:40,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:31:40,955 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:31:40,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound20.c [2024-08-14 14:31:40,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72460247e/ffa574e3314f4de1a63fe1d9af2287b4/FLAG8d322f984 [2024-08-14 14:31:40,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72460247e/ffa574e3314f4de1a63fe1d9af2287b4 [2024-08-14 14:31:40,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:31:40,978 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:31:40,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:31:40,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:31:40,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:31:40,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:31:39" (1/2) ... [2024-08-14 14:31:40,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7eeef1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:31:40, skipping insertion in model container [2024-08-14 14:31:40,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:31:39" (1/2) ... [2024-08-14 14:31:40,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bb0256f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:31:40, skipping insertion in model container [2024-08-14 14:31:40,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:31:40" (2/2) ... [2024-08-14 14:31:40,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7eeef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:40, skipping insertion in model container [2024-08-14 14:31:40,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:31:40" (2/2) ... [2024-08-14 14:31:41,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:31:41,170 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] [2024-08-14 14:31:41,184 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:31:41,192 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:31:41,201 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] [2024-08-14 14:31:41,206 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:31:41,221 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:31:41,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41 WrapperNode [2024-08-14 14:31:41,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:31:41,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:31:41,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:31:41,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:31:41,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,262 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-14 14:31:41,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:31:41,270 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:31:41,270 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:31:41,270 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:31:41,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (1/1) ... [2024-08-14 14:31:41,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:31:41,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:31:41,314 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 14:31:41,321 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 14:31:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:31:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:31:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:31:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:31:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:31:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:31:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:31:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:31:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:31:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:31:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:31:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:31:41,440 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:31:41,442 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:31:41,602 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-08-14 14:31:41,602 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:31:41,610 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:31:41,610 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:31:41,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:31:41 BoogieIcfgContainer [2024-08-14 14:31:41,611 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:31:41,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:31:41,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:31:41,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:31:41,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:31:39" (1/4) ... [2024-08-14 14:31:41,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a037815 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:31:41, skipping insertion in model container [2024-08-14 14:31:41,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:31:40" (2/4) ... [2024-08-14 14:31:41,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a037815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:31:41, skipping insertion in model container [2024-08-14 14:31:41,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:31:41" (3/4) ... [2024-08-14 14:31:41,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a037815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:31:41, skipping insertion in model container [2024-08-14 14:31:41,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:31:41" (4/4) ... [2024-08-14 14:31:41,619 INFO L119 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound20.c [2024-08-14 14:31:41,619 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:31:41,637 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:31:41,637 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:31:41,662 INFO L92 WitnessUtils]: Constructing product of automaton with 25 states and violation witness of the following lengths: [8] [2024-08-14 14:31:41,666 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-14 14:31:41,739 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 101 states to 40 states. [2024-08-14 14:31:41,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:31:41,772 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;@71f8d7de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:31:41,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:31:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2024-08-14 14:31:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-08-14 14:31:41,781 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:31:41,782 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:31:41,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:31:41,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:31:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1355211103, now seen corresponding path program 1 times [2024-08-14 14:31:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:31:41,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432446632] [2024-08-14 14:31:41,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:41,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-08-14 14:31:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651950253] [2024-08-14 14:31:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:41,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:31:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:31:41,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:31:41,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:31:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:31:42,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:31:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:31:42,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:31:42,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:31:42,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:31:42,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-08-14 14:31:42,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-08-14 14:31:42,353 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:31:42,356 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:31:42,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:31:42 BoogieIcfgContainer [2024-08-14 14:31:42,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:31:42,375 INFO L158 Benchmark]: Toolchain (without parser) took 1396.65ms. Allocated memory is still 182.5MB. Free memory was 153.0MB in the beginning and 103.7MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-08-14 14:31:42,375 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 130.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:31:42,376 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:31:42,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.07ms. Allocated memory is still 182.5MB. Free memory was 153.0MB in the beginning and 141.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:31:42,377 INFO L158 Benchmark]: Boogie Preprocessor took 45.77ms. Allocated memory is still 182.5MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:31:42,377 INFO L158 Benchmark]: IcfgBuilder took 341.10ms. Allocated memory is still 182.5MB. Free memory was 139.3MB in the beginning and 127.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-08-14 14:31:42,377 INFO L158 Benchmark]: TraceAbstraction took 760.77ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 103.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-08-14 14:31:42,379 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 0.21ms. Allocated memory is still 130.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.07ms. Allocated memory is still 182.5MB. Free memory was 153.0MB in the beginning and 141.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.77ms. Allocated memory is still 182.5MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 341.10ms. Allocated memory is still 182.5MB. Free memory was 139.3MB in the beginning and 127.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 760.77ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 103.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; VAL [\old(counter)=4, counter=0] [L24] unsigned int z, k; [L25] unsigned long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [\old(counter)=0, c=1, counter=0, x=1, y=0, z=0] [L33] EXPR counter++ VAL [\old(counter)=0, c=1, counter=1, x=1, y=0, z=0] [L33] COND TRUE counter++<20 [L34] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L34] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(counter)=0, c=1, counter=1, x=1, y=0, z=0] [L36] COND TRUE !(c < k) VAL [\old(counter)=0, counter=1, x=1, y=0, z=0] [L45] x = x * (z - 1) VAL [\old(counter)=0, counter=1, x=4294967295, y=0] [L47] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0, \old(counter)=0, counter=1] [L16] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, counter=1] [L18] reach_error() VAL [\old(cond)=0, \old(counter)=0, counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=40occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 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 14:31:42,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE