./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/reducercommutativity/rangesum.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/rangesum.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/rangesum.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:11:59,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:11:59,852 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:11:59,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:11:59,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:11:59,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:11:59,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:11:59,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:11:59,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:11:59,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:11:59,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:11:59,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:11:59,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:11:59,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:11:59,895 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:11:59,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:11:59,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:11:59,896 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:11:59,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:11:59,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:11:59,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:11:59,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:11:59,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:11:59,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:11:59,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:11:59,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:11:59,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:11:59,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:11:59,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:11:59,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:11:59,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:11:59,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:11:59,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:11:59,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:11:59,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:11:59,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:11:59,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:11:59,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:11:59,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:11:59,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:11:59,902 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:11:59,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:11:59,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:11:59,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:12:00,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:12:00,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:12:00,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:12:00,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:12:00,210 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:12:00,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum.i [2024-08-14 14:12:01,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:12:01,826 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:12:01,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i [2024-08-14 14:12:01,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87982044/8a56fa0240814471b6d3c44ef17ee102/FLAG7ae492be6 [2024-08-14 14:12:01,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87982044/8a56fa0240814471b6d3c44ef17ee102 [2024-08-14 14:12:01,853 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:12:01,854 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:12:01,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/rangesum.yml/witness.yml [2024-08-14 14:12:01,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:12:01,963 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:12:01,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:01,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:12:01,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:12:01,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:01" (1/2) ... [2024-08-14 14:12:01,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222c742e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:01, skipping insertion in model container [2024-08-14 14:12:01,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:01" (1/2) ... [2024-08-14 14:12:01,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@744cdd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:01, skipping insertion in model container [2024-08-14 14:12:01,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:01" (2/2) ... [2024-08-14 14:12:01,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222c742e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:01, skipping insertion in model container [2024-08-14 14:12:01,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:01" (2/2) ... [2024-08-14 14:12:01,988 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:12:02,147 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i[1544,1557] [2024-08-14 14:12:02,153 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:02,161 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:12:02,187 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i[1544,1557] [2024-08-14 14:12:02,188 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:02,203 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:12:02,203 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02 WrapperNode [2024-08-14 14:12:02,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:02,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:12:02,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:12:02,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:12:02,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,244 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-08-14 14:12:02,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:12:02,265 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:12:02,265 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:12:02,265 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:12:02,266 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:12:02,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:02,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:12:02,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:12:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:12:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:12:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:12:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2024-08-14 14:12:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-08-14 14:12:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:12:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:12:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:12:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:12:02,418 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:12:02,420 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:12:02,602 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-08-14 14:12:02,603 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:12:02,613 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:12:02,614 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:12:02,616 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:02 BoogieIcfgContainer [2024-08-14 14:12:02,616 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:12:02,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:12:02,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:12:02,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:12:02,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:12:01" (1/4) ... [2024-08-14 14:12:02,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5e8d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:01" (2/4) ... [2024-08-14 14:12:02,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5e8d2c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02" (3/4) ... [2024-08-14 14:12:02,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5e8d2c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:02" (4/4) ... [2024-08-14 14:12:02,625 INFO L119 eAbstractionObserver]: Analyzing ICFG rangesum.i [2024-08-14 14:12:02,625 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:12:02,650 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:12:02,650 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:12:02,685 INFO L92 WitnessUtils]: Constructing product of automaton with 44 states and violation witness of the following lengths: [42] [2024-08-14 14:12:02,691 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 44 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:12:02,847 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 697 states to 112 states. [2024-08-14 14:12:02,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:12:02,874 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;@79dd8726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:12:02,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:12:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2024-08-14 14:12:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-08-14 14:12:02,885 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:02,886 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2024-08-14 14:12:02,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:02,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash -728396347, now seen corresponding path program 1 times [2024-08-14 14:12:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:02,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788658995] [2024-08-14 14:12:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-08-14 14:12:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-08-14 14:12:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-08-14 14:12:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-08-14 14:12:03,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788658995] [2024-08-14 14:12:03,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788658995] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:12:03,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:12:03,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:12:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404734259] [2024-08-14 14:12:03,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:12:03,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:12:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:12:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:12:03,406 INFO L87 Difference]: Start difference. First operand 112 states. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:03,532 INFO L93 Difference]: Finished difference Result 112 states and 128 transitions. [2024-08-14 14:12:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 14:12:03,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-08-14 14:12:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:03,539 INFO L225 Difference]: With dead ends: 112 [2024-08-14 14:12:03,539 INFO L226 Difference]: Without dead ends: 112 [2024-08-14 14:12:03,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:12:03,547 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 35 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:03,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 42 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:12:03,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-08-14 14:12:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2024-08-14 14:12:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 82 states have internal predecessors, (99), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2024-08-14 14:12:03,584 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 83 [2024-08-14 14:12:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:03,585 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2024-08-14 14:12:03,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:12:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2024-08-14 14:12:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-08-14 14:12:03,587 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:03,588 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2024-08-14 14:12:03,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:12:03,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:03,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash -117403555, now seen corresponding path program 1 times [2024-08-14 14:12:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:03,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271117988] [2024-08-14 14:12:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-08-14 14:12:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-08-14 14:12:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-08-14 14:12:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-14 14:12:04,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:04,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271117988] [2024-08-14 14:12:04,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271117988] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:12:04,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179532791] [2024-08-14 14:12:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:04,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:04,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:04,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:04,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:12:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:04,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-14 14:12:04,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:12:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-14 14:12:04,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:12:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-14 14:12:04,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179532791] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:12:04,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:12:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 6] total 12 [2024-08-14 14:12:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920981155] [2024-08-14 14:12:04,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:12:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-14 14:12:04,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:04,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-14 14:12:04,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-08-14 14:12:04,404 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-08-14 14:12:04,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:04,686 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2024-08-14 14:12:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-14 14:12:04,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2024-08-14 14:12:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:04,689 INFO L225 Difference]: With dead ends: 100 [2024-08-14 14:12:04,689 INFO L226 Difference]: Without dead ends: 100 [2024-08-14 14:12:04,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2024-08-14 14:12:04,690 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 80 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:04,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 98 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:12:04,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-08-14 14:12:04,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2024-08-14 14:12:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.197674418604651) internal successors, (103), 86 states have internal predecessors, (103), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2024-08-14 14:12:04,700 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 87 [2024-08-14 14:12:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:04,701 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2024-08-14 14:12:04,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-08-14 14:12:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2024-08-14 14:12:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-08-14 14:12:04,705 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:04,706 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:04,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:12:04,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:04,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:04,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:04,911 INFO L85 PathProgramCache]: Analyzing trace with hash 928380218, now seen corresponding path program 2 times [2024-08-14 14:12:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511051164] [2024-08-14 14:12:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:04,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-08-14 14:12:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-14 14:12:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-08-14 14:12:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 8 proven. 124 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-08-14 14:12:05,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511051164] [2024-08-14 14:12:05,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511051164] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:12:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255624908] [2024-08-14 14:12:05,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 14:12:05,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:05,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:05,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:05,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-14 14:12:05,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 14:12:05,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 14:12:05,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 14:12:05,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:12:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 92 proven. 8 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-08-14 14:12:05,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:12:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 18 proven. 114 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-08-14 14:12:05,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255624908] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:12:05,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:12:05,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 10] total 18 [2024-08-14 14:12:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443355176] [2024-08-14 14:12:05,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:12:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-14 14:12:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-14 14:12:05,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-08-14 14:12:05,886 INFO L87 Difference]: Start difference. First operand 98 states and 114 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 16 states have internal predecessors, (87), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-14 14:12:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:06,434 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2024-08-14 14:12:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-14 14:12:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 16 states have internal predecessors, (87), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-08-14 14:12:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:06,436 INFO L225 Difference]: With dead ends: 159 [2024-08-14 14:12:06,436 INFO L226 Difference]: Without dead ends: 138 [2024-08-14 14:12:06,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=330, Invalid=1230, Unknown=0, NotChecked=0, Total=1560 [2024-08-14 14:12:06,438 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 117 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:06,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 104 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:12:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-08-14 14:12:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 102. [2024-08-14 14:12:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 90 states have (on average 1.1888888888888889) internal successors, (107), 90 states have internal predecessors, (107), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2024-08-14 14:12:06,446 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 91 [2024-08-14 14:12:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:06,447 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2024-08-14 14:12:06,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 16 states have internal predecessors, (87), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-14 14:12:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2024-08-14 14:12:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-08-14 14:12:06,448 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:06,449 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-08-14 14:12:06,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-14 14:12:06,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-14 14:12:06,650 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:06,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash -796679273, now seen corresponding path program 3 times [2024-08-14 14:12:06,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:06,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135549729] [2024-08-14 14:12:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:12:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-08-14 14:12:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-08-14 14:12:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-08-14 14:12:06,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:06,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135549729] [2024-08-14 14:12:06,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135549729] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:12:06,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229386980] [2024-08-14 14:12:06,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-14 14:12:06,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:06,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:06,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:06,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-14 14:12:07,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-14 14:12:07,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 14:12:07,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-14 14:12:07,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:12:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-08-14 14:12:07,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:12:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-08-14 14:12:07,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229386980] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:12:07,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:12:07,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 19 [2024-08-14 14:12:07,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553157459] [2024-08-14 14:12:07,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:12:07,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-14 14:12:07,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:07,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-14 14:12:07,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-08-14 14:12:07,433 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) [2024-08-14 14:12:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:07,852 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2024-08-14 14:12:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-14 14:12:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) Word has length 95 [2024-08-14 14:12:07,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:07,854 INFO L225 Difference]: With dead ends: 108 [2024-08-14 14:12:07,854 INFO L226 Difference]: Without dead ends: 108 [2024-08-14 14:12:07,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2024-08-14 14:12:07,856 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:07,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 99 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:12:07,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-08-14 14:12:07,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-08-14 14:12:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 94 states have internal predecessors, (111), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2024-08-14 14:12:07,873 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 95 [2024-08-14 14:12:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:07,874 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2024-08-14 14:12:07,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) [2024-08-14 14:12:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2024-08-14 14:12:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-08-14 14:12:07,875 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:07,875 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:07,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-14 14:12:08,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:08,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:08,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash 278794266, now seen corresponding path program 4 times [2024-08-14 14:12:08,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:08,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958779771] [2024-08-14 14:12:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-08-14 14:12:08,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962754495] [2024-08-14 14:12:08,177 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-14 14:12:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:08,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:08,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-14 14:12:08,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-14 14:12:08,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-08-14 14:12:08,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:12:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:08,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:12:08,420 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:12:08,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:12:08,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-14 14:12:08,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:08,627 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2024-08-14 14:12:08,631 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:12:08,680 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:12:08 BoogieIcfgContainer [2024-08-14 14:12:08,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:12:08,681 INFO L158 Benchmark]: Toolchain (without parser) took 6718.36ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 125.7MB in the beginning and 82.4MB in the end (delta: 43.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-08-14 14:12:08,681 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:08,681 INFO L158 Benchmark]: Witness Parser took 0.73ms. Allocated memory is still 167.8MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:08,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.75ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 113.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:12:08,682 INFO L158 Benchmark]: Boogie Preprocessor took 59.59ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:12:08,682 INFO L158 Benchmark]: IcfgBuilder took 351.19ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 96.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:12:08,683 INFO L158 Benchmark]: TraceAbstraction took 6062.22ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 94.8MB in the beginning and 82.4MB in the end (delta: 12.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-08-14 14:12:08,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.73ms. Allocated memory is still 167.8MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.75ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 113.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.59ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 351.19ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 96.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6062.22ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 94.8MB in the beginning and 82.4MB in the end (delta: 12.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 64]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int N; VAL [N=0, \old(N)=5] [L43] N = __VERIFIER_nondet_int() [L44] COND TRUE N > 1 [L45] int x[N]; VAL [N=3, \old(N)=0, x={3:0}] [L46] CALL init_nondet(x) VAL [N=3, \old(N)=0, \old(x)={3:0}] [L17] int i; [L18] i = 0 VAL [N=3, \old(N)=0, \old(x)={3:0}, i=0, x={3:0}] [L18] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, i=0, x={3:0}] [L19] x[i] = __VERIFIER_nondet_int() [L18] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, i=1, x={3:0}] [L18] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, i=1, x={3:0}] [L19] x[i] = __VERIFIER_nondet_int() [L18] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, i=2, x={3:0}] [L18] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, i=2, x={3:0}] [L19] x[i] = __VERIFIER_nondet_int() [L18] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, i=3, x={3:0}] [L18] COND FALSE !(i < N) VAL [N=3, \old(N)=0, \old(x)={3:0}, x={3:0}] [L46] RET init_nondet(x) VAL [N=3, \old(N)=0, x={3:0}] [L47] int temp; [L48] int ret; [L49] int ret2; [L50] int ret5; VAL [N=3, \old(N)=0, x={3:0}] [L52] CALL, EXPR rangesum(x) VAL [N=3, \old(N)=0, \old(x)={3:0}] [L25] int i; [L26] long long ret; [L27] ret = 0 [L28] int cnt = 0; [L29] i = 0 VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L30] COND FALSE !(i > N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L30] COND FALSE !(i > N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L30] COND TRUE i > N/2 [L31] EXPR x[i] [L31] ret = ret + x[i] [L32] cnt = cnt + 1 VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=2, ret=-2, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=3, ret=-2, x={3:0}] [L29] COND FALSE !(i < N) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, ret=-2, x={3:0}] [L35] COND TRUE cnt !=0 [L36] return ret / cnt; VAL [N=3, \old(N)=0, \old(x)={3:0}, \result=-2, x={3:0}] [L52] RET, EXPR rangesum(x) VAL [N=3, \old(N)=0, x={3:0}] [L52] ret = rangesum(x) [L54] EXPR x[0] [L54] temp=x[0] [L54] EXPR x[1] [L54] x[0] = x[1] [L54] x[1] = temp VAL [N=3, \old(N)=0, ret=-2, x={3:0}] [L55] CALL, EXPR rangesum(x) VAL [N=3, \old(N)=0, \old(x)={3:0}] [L25] int i; [L26] long long ret; [L27] ret = 0 [L28] int cnt = 0; [L29] i = 0 VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L30] COND FALSE !(i > N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L30] COND FALSE !(i > N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L30] COND TRUE i > N/2 [L31] EXPR x[i] [L31] ret = ret + x[i] [L32] cnt = cnt + 1 VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=2, ret=-2, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=3, ret=-2, x={3:0}] [L29] COND FALSE !(i < N) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, ret=-2, x={3:0}] [L35] COND TRUE cnt !=0 [L36] return ret / cnt; VAL [N=3, \old(N)=0, \old(x)={3:0}, \result=-2, x={3:0}] [L55] RET, EXPR rangesum(x) VAL [N=3, \old(N)=0, ret=-2, x={3:0}] [L55] ret2 = rangesum(x) [L56] EXPR x[0] [L56] temp=x[0] [L57] int i =0 ; VAL [N=3, \old(N)=0, i=0, ret2=-2, ret=-2, temp=0, x={3:0}] [L57] COND TRUE i N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L30] COND FALSE !(i > N/2) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND TRUE i < N VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L30] COND TRUE i > N/2 [L31] EXPR x[i] [L31] ret = ret + x[i] [L32] cnt = cnt + 1 VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=2, ret=0, x={3:0}] [L29] i++ VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, i=3, ret=0, x={3:0}] [L29] COND FALSE !(i < N) VAL [N=3, \old(N)=0, \old(x)={3:0}, cnt=1, ret=0, x={3:0}] [L35] COND TRUE cnt !=0 [L36] return ret / cnt; VAL [N=3, \old(N)=0, \old(x)={3:0}, \result=0, x={3:0}] [L61] RET, EXPR rangesum(x) VAL [N=3, \old(N)=0, ret2=-2, ret=-2, x={3:0}] [L61] ret5 = rangesum(x) [L63] COND TRUE ret != ret2 || ret !=ret5 VAL [N=3, \old(N)=0, x={3:0}] [L64] reach_error() VAL [N=3, \old(N)=0, x={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 297 mSDsluCounter, 343 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 896 IncrementalHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 79 mSDtfsCounter, 896 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 662 GetRequests, 561 SyntacticMatches, 9 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=0, InterpolantAutomatonStates: 68, 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, 4 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 827 NumberOfCodeBlocks, 791 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 892 ConstructedInterpolants, 0 QuantifiedInterpolants, 1675 SizeOfPredicates, 3 NumberOfNonLiveVariables, 694 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 1967/2235 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:12:08,713 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