./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1210.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/float-newlib/float_req_bl_1210.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1210.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 18:17:18,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:17:18,553 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:17:18,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:17:18,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:17:18,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:17:18,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:17:18,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:17:18,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:17:18,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:17:18,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:17:18,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:17:18,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:17:18,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:17:18,597 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:17:18,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:17:18,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:17:18,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:17:18,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:17:18,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:17:18,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:17:18,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:17:18,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:17:18,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:17:18,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:17:18,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:17:18,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:17:18,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:17:18,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:17:18,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:17:18,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:17:18,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:17:18,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:17:18,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:17:18,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:17:18,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:17:18,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:17:18,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:17:18,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:17:18,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:17:18,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:17:18,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:17:18,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:17:18,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:17:18,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:17:18,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:17:18,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:17:18,909 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:17:18,910 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:17:18,912 INFO L431 ainManager$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/float_req_bl_1210.yml/witness.yml [2024-08-15 18:17:19,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:17:19,033 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:17:19,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2024-08-15 18:17:20,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:17:20,736 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:17:20,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2024-08-15 18:17:20,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab998d7b9/e86fe293883d485a9243c70f273f04b0/FLAGaf0e4106f [2024-08-15 18:17:21,116 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab998d7b9/e86fe293883d485a9243c70f273f04b0 [2024-08-15 18:17:21,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:17:21,119 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:17:21,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:21,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:17:21,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:17:21,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:19" (1/2) ... [2024-08-15 18:17:21,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49112e41 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:19" (1/2) ... [2024-08-15 18:17:21,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50f296fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:21" (2/2) ... [2024-08-15 18:17:21,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49112e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21, skipping insertion in model container [2024-08-15 18:17:21,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:21" (2/2) ... [2024-08-15 18:17:21,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:17:21,375 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172] [2024-08-15 18:17:21,383 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:21,402 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:17:21,440 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172] [2024-08-15 18:17:21,445 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:21,476 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:17:21,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21 WrapperNode [2024-08-15 18:17:21,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:21,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:17:21,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:17:21,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:17:21,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,560 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 2, 6, 2, 2, 2, 2]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 1, 4, 1, 1, 1, 1]. [2024-08-15 18:17:21,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:17:21,603 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:17:21,603 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:17:21,603 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:17:21,604 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (1/1) ... [2024-08-15 18:17:21,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:17:21,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:17:21,644 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 18:17:21,650 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 18:17:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:17:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:17:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:17:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2024-08-15 18:17:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-08-15 18:17:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:17:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:17:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:17:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-08-15 18:17:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-08-15 18:17:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-08-15 18:17:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-08-15 18:17:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-08-15 18:17:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-08-15 18:17:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-08-15 18:17:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:17:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:17:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-15 18:17:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-08-15 18:17:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-08-15 18:17:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-08-15 18:17:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-08-15 18:17:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-08-15 18:17:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-08-15 18:17:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-08-15 18:17:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-08-15 18:17:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-08-15 18:17:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-08-15 18:17:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:17:21,833 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:17:21,835 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:17:21,922 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L83: call ULTIMATE.dealloc(~#iptr~0.base, ~#iptr~0.offset);havoc ~#iptr~0.base, ~#iptr~0.offset; [2024-08-15 18:17:22,100 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: havoc #t~mem12; [2024-08-15 18:17:22,100 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L34: havoc ~ix~0; [2024-08-15 18:17:22,100 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L57: havoc ~ix~1; [2024-08-15 18:17:22,154 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-08-15 18:17:22,154 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:17:22,165 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:17:22,165 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:17:22,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:22 BoogieIcfgContainer [2024-08-15 18:17:22,166 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:17:22,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:17:22,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:17:22,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:17:22,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:19" (1/4) ... [2024-08-15 18:17:22,172 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:17:22,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f7edb7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:17:21" (2/4) ... [2024-08-15 18:17:22,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f7edb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:21" (3/4) ... [2024-08-15 18:17:22,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f7edb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:22, skipping insertion in model container [2024-08-15 18:17:22,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:22" (4/4) ... [2024-08-15 18:17:22,176 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2024-08-15 18:17:22,198 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:17:22,198 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:17:22,243 INFO L90 WitnessUtils]: Constructing product of automaton with 57 states and violation witness of the following lengths: [12] [2024-08-15 18:17:22,340 INFO L95 WitnessUtils]: Product has 93 reachable states. [2024-08-15 18:17:22,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:17:22,377 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;@30862886, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:17:22,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:17:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2024-08-15 18:17:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-08-15 18:17:22,388 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:22,389 INFO L195 NwaCegarLoop]: trace histogram [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] [2024-08-15 18:17:22,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:22,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash -439704020, now seen corresponding path program 1 times [2024-08-15 18:17:22,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:17:22,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370277304] [2024-08-15 18:17:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:22,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:17:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:17:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-15 18:17:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-08-15 18:17:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-08-15 18:17:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-15 18:17:22,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:17:22,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370277304] [2024-08-15 18:17:22,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370277304] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:17:22,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:17:22,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:17:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477156713] [2024-08-15 18:17:22,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:17:22,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:17:22,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:17:22,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:17:22,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:17:22,963 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:17:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:17:23,317 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2024-08-15 18:17:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-15 18:17:23,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2024-08-15 18:17:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:17:23,327 INFO L225 Difference]: With dead ends: 86 [2024-08-15 18:17:23,328 INFO L226 Difference]: Without dead ends: 34 [2024-08-15 18:17:23,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:17:23,335 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 60 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:17:23,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 7 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:17:23,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-08-15 18:17:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-08-15 18:17:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0) internal successors, (24), 24 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-15 18:17:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2024-08-15 18:17:23,376 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 30 [2024-08-15 18:17:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:17:23,377 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2024-08-15 18:17:23,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:17:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2024-08-15 18:17:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-08-15 18:17:23,378 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:23,378 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-08-15 18:17:23,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:17:23,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:23,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash -578721447, now seen corresponding path program 1 times [2024-08-15 18:17:23,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:17:23,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602677285] [2024-08-15 18:17:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:17:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:23,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:17:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:23,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:17:23,593 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:17:23,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:17:23,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-15 18:17:23,604 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:17:23,609 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:17:23,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:17:23 BoogieIcfgContainer [2024-08-15 18:17:23,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:17:23,643 INFO L158 Benchmark]: Toolchain (without parser) took 2521.68ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 59.6MB in the beginning and 106.4MB in the end (delta: -46.8MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,643 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 134.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:23,644 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:23,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.61ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 59.4MB in the beginning and 148.6MB in the end (delta: -89.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,644 INFO L158 Benchmark]: Boogie Preprocessor took 122.79ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 144.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,644 INFO L158 Benchmark]: IcfgBuilder took 562.78ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 122.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,645 INFO L158 Benchmark]: TraceAbstraction took 1471.77ms. Allocated memory is still 184.5MB. Free memory was 122.6MB in the beginning and 106.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-08-15 18:17:23,648 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 134.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.27ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.61ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 59.4MB in the beginning and 148.6MB in the end (delta: -89.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 122.79ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 144.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 562.78ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 122.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1471.77ms. Allocated memory is still 184.5MB. Free memory was 122.6MB in the beginning and 106.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.1MB. 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 - UnprovableResult [Line: 88]: 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 75, overapproximation of someBinaryArithmeticFLOAToperation at line 59. Possible FailurePath: [L13] static const float one_modf = 1.0; VAL [\old(one_modf)=1258291201, one_modf=1] [L82] float x = 0.0f / 0.0f; [L83] float iptr; VAL [iptr={6:0}, one_modf=1] [L84] CALL, EXPR modf_float(x, &iptr) VAL [\old(iptr)={6:0}, \old(x)=1258291203, one_modf=1] [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(iptr)={6:0}, \old(x)=1258291203, iptr={6:0}, one_modf=1, x=1258291203] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L22] COND FALSE !(0) VAL [\old(iptr)={6:0}, \old(x)=1258291203, i0=1258291200, iptr={6:0}, one_modf=1, x=1258291203] [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(iptr)={6:0}, \old(x)=1258291203, i0=1258291200, iptr={6:0}, j0=23, one_modf=1, x=1258291203] [L24] COND FALSE !(j0 < 23) [L58] __uint32_t ix; [L59] *iptr = x * one_modf VAL [\old(iptr)={6:0}, \old(x)=1258291203, i0=1258291200, one_modf=1, x=1258291203] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (ix) = gf_u.word [L64] COND FALSE !(0) VAL [\old(iptr)={6:0}, \old(x)=1258291203, i0=1258291200, ix=9, one_modf=1, x=1258291203] [L66] ieee_float_shape_type sf_u; [L67] sf_u.word = (ix & 0x80000000) [L68] EXPR sf_u.value [L68] (x) = sf_u.value [L69] COND FALSE !(0) VAL [\old(iptr)={6:0}, \old(x)=1258291203, i0=1258291200, ix=9, one_modf=1, x=1258291202] [L70] return x; VAL [\old(iptr)={6:0}, \old(x)=1258291203, \result=1258291202, i0=1258291200, ix=9, one_modf=1] [L84] RET, EXPR modf_float(x, &iptr) VAL [iptr={6:0}, one_modf=1, x=1258291203] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=1258291204, one_modf=1] [L75] return x != x; VAL [\old(x)=1258291204, \result=1, one_modf=1] [L87] RET, EXPR isnan_float(iptr) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=1258291202, one_modf=1] [L75] return x != x; VAL [\old(x)=1258291202, \result=0, one_modf=1] [L87] RET, EXPR isnan_float(res) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1, res=1258291202, x=1258291203] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1, res=1258291202, x=1258291203] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 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 could not prove your program: unable to determine feasibility of some traces [2024-08-15 18:17:23,678 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 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/float-newlib/float_req_bl_1210.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/float_req_bl_1210.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:17:26,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:17:26,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:17:26,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:17:26,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:17:26,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:17:26,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:17:26,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:17:26,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:17:26,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:17:26,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:17:26,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:17:26,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:17:26,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:17:26,301 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:17:26,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:17:26,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:17:26,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:17:26,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:17:26,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:17:26,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:17:26,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:17:26,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:17:26,307 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:17:26,308 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:17:26,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:17:26,308 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:17:26,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:17:26,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:17:26,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:17:26,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:17:26,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:17:26,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:17:26,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:17:26,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:17:26,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:17:26,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:17:26,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:17:26,312 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:17:26,312 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:17:26,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:17:26,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:17:26,314 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:17:26,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:17:26,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:17:26,314 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:17:26,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:17:26,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:17:26,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:17:26,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:17:26,686 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:17:26,687 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:17:26,689 INFO L431 ainManager$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/float_req_bl_1210.yml/witness.yml [2024-08-15 18:17:26,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:17:26,757 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:17:26,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2024-08-15 18:17:28,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:17:28,789 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:17:28,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2024-08-15 18:17:28,807 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549b8af95/5d476fce56ad4a3894aeea76e4fc6f72/FLAGd890d2dc7 [2024-08-15 18:17:28,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549b8af95/5d476fce56ad4a3894aeea76e4fc6f72 [2024-08-15 18:17:28,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:17:28,829 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:17:28,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:28,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:17:28,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:17:28,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:26" (1/2) ... [2024-08-15 18:17:28,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df9aa23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:28, skipping insertion in model container [2024-08-15 18:17:28,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:26" (1/2) ... [2024-08-15 18:17:28,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b2a103f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:17:28, skipping insertion in model container [2024-08-15 18:17:28,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:28" (2/2) ... [2024-08-15 18:17:28,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df9aa23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:28, skipping insertion in model container [2024-08-15 18:17:28,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:17:28" (2/2) ... [2024-08-15 18:17:28,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:17:29,112 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172] [2024-08-15 18:17:29,117 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:29,132 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:17:29,173 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172] [2024-08-15 18:17:29,174 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:17:29,199 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:17:29,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29 WrapperNode [2024-08-15 18:17:29,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:17:29,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:17:29,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:17:29,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:17:29,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,264 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 2, 6, 2, 2, 2, 2]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 1, 4, 1, 1, 1, 1]. [2024-08-15 18:17:29,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:17:29,314 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:17:29,318 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:17:29,318 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:17:29,319 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (1/1) ... [2024-08-15 18:17:29,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:17:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:17:29,373 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 18:17:29,377 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 18:17:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:17:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:17:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:17:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:17:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2024-08-15 18:17:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-08-15 18:17:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2024-08-15 18:17:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-08-15 18:17:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-08-15 18:17:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-08-15 18:17:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-08-15 18:17:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-08-15 18:17:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-08-15 18:17:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-08-15 18:17:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-08-15 18:17:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-08-15 18:17:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-08-15 18:17:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-08-15 18:17:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-08-15 18:17:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-08-15 18:17:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-08-15 18:17:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:17:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-08-15 18:17:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-08-15 18:17:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:17:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-08-15 18:17:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-08-15 18:17:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-08-15 18:17:29,627 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:17:29,629 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:17:29,765 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L83: call ULTIMATE.dealloc(~#iptr~0.base, ~#iptr~0.offset);havoc ~#iptr~0.base, ~#iptr~0.offset; [2024-08-15 18:17:30,186 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: havoc #t~mem9; [2024-08-15 18:17:30,187 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L34: havoc ~ix~0; [2024-08-15 18:17:30,187 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L57: havoc ~ix~1; [2024-08-15 18:17:30,252 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-08-15 18:17:30,252 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:17:30,270 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:17:30,270 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:17:30,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:30 BoogieIcfgContainer [2024-08-15 18:17:30,271 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:17:30,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:17:30,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:17:30,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:17:30,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:17:26" (1/4) ... [2024-08-15 18:17:30,281 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:17:30,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2546a542 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:17:30, skipping insertion in model container [2024-08-15 18:17:30,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:17:28" (2/4) ... [2024-08-15 18:17:30,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2546a542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:30, skipping insertion in model container [2024-08-15 18:17:30,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:17:29" (3/4) ... [2024-08-15 18:17:30,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2546a542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:17:30, skipping insertion in model container [2024-08-15 18:17:30,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:17:30" (4/4) ... [2024-08-15 18:17:30,290 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2024-08-15 18:17:30,313 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:17:30,313 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:17:30,357 INFO L90 WitnessUtils]: Constructing product of automaton with 50 states and violation witness of the following lengths: [12] [2024-08-15 18:17:30,428 INFO L95 WitnessUtils]: Product has 86 reachable states. [2024-08-15 18:17:30,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:17:30,461 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;@689c2a0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:17:30,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:17:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 105 transitions. [2024-08-15 18:17:30,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-08-15 18:17:30,473 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:30,474 INFO L195 NwaCegarLoop]: trace histogram [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] [2024-08-15 18:17:30,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:30,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:30,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1749449448, now seen corresponding path program 1 times [2024-08-15 18:17:30,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:17:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175041190] [2024-08-15 18:17:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:30,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:17:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:17:30,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-15 18:17:30,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-15 18:17:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:17:30,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2024-08-15 18:17:30,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:17:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-15 18:17:30,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:17:30,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-15 18:17:30,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175041190] [2024-08-15 18:17:30,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175041190] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:17:30,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:17:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-15 18:17:30,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926685389] [2024-08-15 18:17:30,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:17:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-15 18:17:30,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-15 18:17:30,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-15 18:17:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:17:30,810 INFO L87 Difference]: Start difference. First operand 86 states and 105 transitions. Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:17:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:17:30,820 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2024-08-15 18:17:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-15 18:17:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2024-08-15 18:17:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:17:30,830 INFO L225 Difference]: With dead ends: 79 [2024-08-15 18:17:30,831 INFO L226 Difference]: Without dead ends: 34 [2024-08-15 18:17:30,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:17:30,836 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:17:30,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:17:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-08-15 18:17:30,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-08-15 18:17:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0) internal successors, (24), 24 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-15 18:17:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2024-08-15 18:17:30,875 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 30 [2024-08-15 18:17:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:17:30,876 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2024-08-15 18:17:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:17:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2024-08-15 18:17:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-08-15 18:17:30,878 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:17:30,879 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-08-15 18:17:30,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-08-15 18:17:31,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:17:31,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:17:31,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:17:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1445378122, now seen corresponding path program 1 times [2024-08-15 18:17:31,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:17:31,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827458062] [2024-08-15 18:17:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:17:31,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:17:31,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:17:31,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-15 18:17:31,087 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 (3)] Waiting until timeout for monitored process [2024-08-15 18:17:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:31,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:17:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:17:31,534 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:17:31,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:17:31,538 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:17:31,549 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 (3)] Ended with exit code 0 [2024-08-15 18:17:31,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:17:31,745 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:17:31,748 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:17:31,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:17:31 BoogieIcfgContainer [2024-08-15 18:17:31,791 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:17:31,792 INFO L158 Benchmark]: Toolchain (without parser) took 2963.59ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 32.0MB in the beginning and 40.0MB in the end (delta: -8.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-08-15 18:17:31,793 INFO L158 Benchmark]: Witness Parser took 0.32ms. Allocated memory is still 50.3MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:31,793 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 24.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:17:31,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.78ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 32.7MB in the end (delta: -978.6kB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-08-15 18:17:31,794 INFO L158 Benchmark]: Boogie Preprocessor took 111.01ms. Allocated memory is still 65.0MB. Free memory was 32.7MB in the beginning and 29.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:17:31,794 INFO L158 Benchmark]: IcfgBuilder took 957.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 28.8MB in the beginning and 54.7MB in the end (delta: -25.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-08-15 18:17:31,795 INFO L158 Benchmark]: TraceAbstraction took 1516.49ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 40.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-08-15 18:17:31,797 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 0.32ms. Allocated memory is still 50.3MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 24.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.78ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 32.7MB in the end (delta: -978.6kB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.01ms. Allocated memory is still 65.0MB. Free memory was 32.7MB in the beginning and 29.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 957.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 28.8MB in the beginning and 54.7MB in the end (delta: -25.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1516.49ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 40.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. 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: 88]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] static const float one_modf = 1.0; VAL [\old(one_modf)=0.00000000000000000000000000000000000000000001401298464324817, one_modf=1.0] [L82] float x = 0.0f / 0.0f; [L83] float iptr; VAL [iptr={15:0}, one_modf=1.0, x=NaN] [L84] CALL, EXPR modf_float(x, &iptr) VAL [\old(iptr)={15:0}, \old(x)=NaN, one_modf=1.0] [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(iptr)={15:0}, \old(x)=NaN, iptr={15:0}, one_modf=1.0, x=NaN] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L22] COND FALSE !(0) VAL [\old(iptr)={15:0}, \old(x)=NaN, i0=2143289344, iptr={15:0}, one_modf=1.0, x=NaN] [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(iptr)={15:0}, \old(x)=NaN, i0=2143289344, iptr={15:0}, j0=128, one_modf=1.0, x=NaN] [L24] COND FALSE !(j0 < 23) [L58] __uint32_t ix; [L59] *iptr = x * one_modf VAL [\old(iptr)={15:0}, \old(x)=NaN, i0=2143289344, one_modf=1.0, x=NaN] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (ix) = gf_u.word [L64] COND FALSE !(0) VAL [\old(iptr)={15:0}, \old(x)=NaN, i0=2143289344, ix=2143289344, one_modf=1.0, x=NaN] [L66] ieee_float_shape_type sf_u; [L67] sf_u.word = (ix & 0x80000000) [L68] EXPR sf_u.value [L68] (x) = sf_u.value [L69] COND FALSE !(0) VAL [\old(iptr)={15:0}, \old(x)=NaN, i0=2143289344, ix=2143289344, one_modf=1.0, x=0.0] [L70] return x; VAL [\old(iptr)={15:0}, \old(x)=NaN, \result=0.0, i0=2143289344, ix=2143289344, one_modf=1.0] [L84] RET, EXPR modf_float(x, &iptr) VAL [iptr={15:0}, one_modf=1.0, x=NaN] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L75] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0] [L87] RET, EXPR isnan_float(iptr) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=0.0, one_modf=1.0] [L75] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0] [L87] RET, EXPR isnan_float(res) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0, res=0.0, x=NaN] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 1 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 18:17:31,834 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