./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/bresenham-ll_unwindbound1.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/bresenham-ll_unwindbound1.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:26:40,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:26:40,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:26:40,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:26:40,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:26:40,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:26:40,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:26:40,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:26:40,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:26:40,531 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:26:40,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:26:40,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:26:40,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:26:40,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:26:40,534 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:26:40,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:26:40,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:26:40,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:26:40,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:26:40,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:26:40,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:26:40,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:26:40,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:26:40,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:26:40,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:26:40,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:26:40,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:26:40,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:26:40,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:26:40,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:26:40,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:26:40,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:26:40,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:26:40,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:26:40,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:26:40,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:26:40,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:26:40,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:26:40,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:26:40,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:26:40,547 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:26:40,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:26:40,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:26:40,549 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:26:40,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:26:40,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:26:40,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:26:40,856 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:26:40,857 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:26:40,859 INFO L431 ainManager$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/bresenham-ll_unwindbound1.yml/witness.yml [2024-08-15 18:26:40,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:26:40,992 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:26:40,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2024-08-15 18:26:42,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:26:42,810 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:26:42,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2024-08-15 18:26:42,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fbb10b19/c0900ca3218a4b8092246c917c7bf4a7/FLAG5ed644c38 [2024-08-15 18:26:42,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fbb10b19/c0900ca3218a4b8092246c917c7bf4a7 [2024-08-15 18:26:42,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:26:42,843 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:26:42,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:26:42,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:26:42,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:26:42,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:26:40" (1/2) ... [2024-08-15 18:26:42,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b88a08 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:26:42, skipping insertion in model container [2024-08-15 18:26:42,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:26:40" (1/2) ... [2024-08-15 18:26:42,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a160d6a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:26:42, skipping insertion in model container [2024-08-15 18:26:42,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:26:42" (2/2) ... [2024-08-15 18:26:42,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b88a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:42, skipping insertion in model container [2024-08-15 18:26:42,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:26:42" (2/2) ... [2024-08-15 18:26:42,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:26:43,072 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/bresenham-ll_unwindbound1.c[597,610] [2024-08-15 18:26:43,100 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:26:43,117 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:26:43,147 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/bresenham-ll_unwindbound1.c[597,610] [2024-08-15 18:26:43,161 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:26:43,178 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:26:43,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43 WrapperNode [2024-08-15 18:26:43,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:26:43,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:26:43,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:26:43,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:26:43,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,218 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]. [2024-08-15 18:26:43,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:26:43,232 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:26:43,232 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:26:43,232 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:26:43,233 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (1/1) ... [2024-08-15 18:26:43,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:26:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:26:43,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:26:43,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:26:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:26:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:26:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:26:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:26:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:26:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:26:43,402 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:26:43,404 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:26:43,579 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-08-15 18:26:43,579 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:26:43,589 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:26:43,591 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:26:43,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:26:43 BoogieIcfgContainer [2024-08-15 18:26:43,592 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:26:43,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:26:43,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:26:43,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:26:43,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:26:40" (1/4) ... [2024-08-15 18:26:43,598 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:26:43,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebf75d6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:26:43, skipping insertion in model container [2024-08-15 18:26:43,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:26:42" (2/4) ... [2024-08-15 18:26:43,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebf75d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:26:43, skipping insertion in model container [2024-08-15 18:26:43,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:26:43" (3/4) ... [2024-08-15 18:26:43,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebf75d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:26:43, skipping insertion in model container [2024-08-15 18:26:43,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:26:43" (4/4) ... [2024-08-15 18:26:43,604 INFO L128 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound1.c [2024-08-15 18:26:43,624 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:26:43,625 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:26:43,659 INFO L90 WitnessUtils]: Constructing product of automaton with 27 states and violation witness of the following lengths: [10] [2024-08-15 18:26:43,731 INFO L95 WitnessUtils]: Product has 141 reachable states. [2024-08-15 18:26:43,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:26:43,757 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;@6841e249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:26:43,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:26:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2024-08-15 18:26:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-08-15 18:26:43,768 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:26:43,769 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:26:43,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:26:43,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:26:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash 263675011, now seen corresponding path program 1 times [2024-08-15 18:26:43,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:26:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820643391] [2024-08-15 18:26:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:43,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:26:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:26:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-08-15 18:26:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-15 18:26:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:26:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820643391] [2024-08-15 18:26:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820643391] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:26:44,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:26:44,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-15 18:26:44,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164871040] [2024-08-15 18:26:44,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:26:44,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:26:44,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:26:44,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:26:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:26:44,164 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-08-15 18:26:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:26:44,202 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-08-15 18:26:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:26:44,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-08-15 18:26:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:26:44,222 INFO L225 Difference]: With dead ends: 99 [2024-08-15 18:26:44,222 INFO L226 Difference]: Without dead ends: 46 [2024-08-15 18:26:44,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:26:44,228 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:26:44,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 40 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:26:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-08-15 18:26:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2024-08-15 18:26:44,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-08-15 18:26:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-08-15 18:26:44,276 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 24 [2024-08-15 18:26:44,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:26:44,277 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-08-15 18:26:44,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-08-15 18:26:44,277 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-08-15 18:26:44,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-08-15 18:26:44,280 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:26:44,280 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:26:44,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:26:44,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:26:44,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:26:44,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1977830075, now seen corresponding path program 1 times [2024-08-15 18:26:44,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:26:44,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303647875] [2024-08-15 18:26:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:26:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-08-15 18:26:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332203842] [2024-08-15 18:26:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:44,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:26:44,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:26:44,371 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) [2024-08-15 18:26:44,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-15 18:26:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:26:44,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:26:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:26:44,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:26:44,494 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:26:44,495 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:26:44,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-08-15 18:26:44,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:26:44,706 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:26:44,709 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:26:44,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:26:44 BoogieIcfgContainer [2024-08-15 18:26:44,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:26:44,731 INFO L158 Benchmark]: Toolchain (without parser) took 1887.98ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 100.7MB in the beginning and 206.3MB in the end (delta: -105.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:26:44,731 INFO L158 Benchmark]: Witness Parser took 1.07ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 129.6MB in the end (delta: 175.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:26:44,731 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 176.2MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:26:44,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 146.3MB in the end (delta: -45.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-08-15 18:26:44,732 INFO L158 Benchmark]: Boogie Preprocessor took 49.69ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:26:44,733 INFO L158 Benchmark]: IcfgBuilder took 360.26ms. Allocated memory is still 176.2MB. Free memory was 144.2MB in the beginning and 131.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:26:44,733 INFO L158 Benchmark]: TraceAbstraction took 1136.25ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 130.6MB in the beginning and 206.3MB in the end (delta: -75.8MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2024-08-15 18:26:44,735 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 1.07ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 129.6MB in the end (delta: 175.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 176.2MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 146.3MB in the end (delta: -45.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.69ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 360.26ms. Allocated memory is still 176.2MB. Free memory was 144.2MB in the beginning and 131.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1136.25ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 130.6MB in the beginning and 206.3MB in the end (delta: -75.8MB). Peak memory consumption was 1.8MB. 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; VAL [\old(counter)=4, counter=0] [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=2, Y=1, \old(counter)=0, counter=0, v=0, x=0, y=0] [L31] EXPR counter++ VAL [X=2, Y=1, \old(counter)=0, counter=1, v=0, x=0, y=0] [L31] COND TRUE counter++<1 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2, Y=1, \old(counter)=0, counter=1, v=0, x=0, xy=0, y=0, yx=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2, Y=1, \old(counter)=0, counter=1, v=0, x=0, xy=0, y=0, yx=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2, Y=1, \old(counter)=0, counter=1, v=0, x=0, xy=0, y=0, yx=0] [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ VAL [X=2, Y=1, \old(counter)=0, counter=1, v=-2, x=0, xy=0, y=1, yx=0] [L45] x++ VAL [X=2, Y=1, \old(counter)=0, counter=1, v=-2, x=1, xy=0, y=1, yx=0] [L31] EXPR counter++ VAL [X=2, Y=1, \old(counter)=0, counter=2, v=-2, x=1, xy=0, y=1, yx=0] [L31] COND FALSE !(counter++<1) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=2, Y=1, \old(counter)=0, counter=2, v=-2, xy=1, y=1, yx=1] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, \old(counter)=0, counter=2] [L14] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, counter=2] [L16] reach_error() VAL [\old(cond)=0, \old(counter)=0, counter=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 24 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-15 18:26:44,769 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