./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 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/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-03fe66f-m [2024-08-15 18:03:39,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:03:39,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:03:39,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:03:39,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:03:39,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:03:39,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:03:39,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:03:39,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:03:39,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:03:39,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:03:39,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:03:39,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:03:39,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:03:39,780 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:03:39,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:03:39,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:03:39,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:03:39,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:03:39,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:03:39,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:03:39,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:03:39,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:03:39,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:03:39,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:03:39,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:03:39,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:03:39,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:03:39,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:03:39,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:03:39,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:03:39,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:03:39,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:03:39,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:03:39,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:03:39,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:03:39,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:03:39,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:03:39,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:03:39,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:03:39,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:03:39,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:03:39,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:03:39,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:03:40,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:03:40,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:03:40,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:03:40,129 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:03:40,130 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:03:40,132 INFO L431 ainManager$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 [2024-08-15 18:03:40,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:03:40,245 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:03:40,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum.i [2024-08-15 18:03:41,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:03:42,118 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:03:42,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i [2024-08-15 18:03:42,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9ab30ba/ea687c6974184aa2b8eebaa5cedf4e03/FLAGf28d9cb2b [2024-08-15 18:03:42,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9ab30ba/ea687c6974184aa2b8eebaa5cedf4e03 [2024-08-15 18:03:42,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:03:42,148 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:03:42,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:03:42,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:03:42,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:03:42,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:03:40" (1/2) ... [2024-08-15 18:03:42,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17502637 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:03:40" (1/2) ... [2024-08-15 18:03:42,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bf3993e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:03:42" (2/2) ... [2024-08-15 18:03:42,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17502637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:03:42" (2/2) ... [2024-08-15 18:03:42,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:03:42,406 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] [2024-08-15 18:03:42,416 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:03:42,429 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:03:42,464 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] [2024-08-15 18:03:42,471 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:03:42,491 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:03:42,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42 WrapperNode [2024-08-15 18:03:42,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:03:42,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:03:42,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:03:42,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:03:42,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,541 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]. [2024-08-15 18:03:42,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:03:42,567 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:03:42,567 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:03:42,567 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:03:42,569 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (1/1) ... [2024-08-15 18:03:42,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:03:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:03:42,603 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 18:03:42,604 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 18:03:42,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:03:42,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:03:42,651 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:03:42,651 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2024-08-15 18:03:42,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-08-15 18:03:42,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:03:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:03:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:03:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:03:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:03:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:03:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:03:42,762 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:03:42,765 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:03:42,961 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-08-15 18:03:42,962 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:03:42,972 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:03:42,973 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:03:42,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:03:42 BoogieIcfgContainer [2024-08-15 18:03:42,973 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:03:42,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:03:42,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:03:42,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:03:42,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:03:40" (1/4) ... [2024-08-15 18:03:42,981 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:03:42,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d72336f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:03:42" (2/4) ... [2024-08-15 18:03:42,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d72336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:03:42" (3/4) ... [2024-08-15 18:03:42,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d72336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:03:42, skipping insertion in model container [2024-08-15 18:03:42,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:03:42" (4/4) ... [2024-08-15 18:03:42,987 INFO L128 eAbstractionObserver]: Analyzing ICFG rangesum.i [2024-08-15 18:03:43,010 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:03:43,011 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:03:43,040 INFO L90 WitnessUtils]: Constructing product of automaton with 44 states and violation witness of the following lengths: [42] [2024-08-15 18:03:43,284 INFO L95 WitnessUtils]: Product has 697 reachable states. [2024-08-15 18:03:43,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:03:43,317 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;@d70e525, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:03:43,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:03:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 949 transitions. [2024-08-15 18:03:43,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-08-15 18:03:43,347 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:03:43,349 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] [2024-08-15 18:03:43,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:03:43,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:03:43,357 INFO L85 PathProgramCache]: Analyzing trace with hash -728396347, now seen corresponding path program 1 times [2024-08-15 18:03:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:03:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492605629] [2024-08-15 18:03:43,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:43,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:03:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:03:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-15 18:03:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-08-15 18:03:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-08-15 18:03:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-08-15 18:03:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-08-15 18:03:43,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:03:43,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492605629] [2024-08-15 18:03:43,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492605629] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:03:43,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:03:43,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:03:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545588387] [2024-08-15 18:03:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:03:43,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:03:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:03:43,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:03:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:03:43,869 INFO L87 Difference]: Start difference. First operand 697 states and 949 transitions. 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) [2024-08-15 18:03:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:03:44,004 INFO L93 Difference]: Finished difference Result 440 states and 531 transitions. [2024-08-15 18:03:44,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-15 18:03:44,011 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 [2024-08-15 18:03:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:03:44,018 INFO L225 Difference]: With dead ends: 440 [2024-08-15 18:03:44,018 INFO L226 Difference]: Without dead ends: 112 [2024-08-15 18:03:44,020 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 [2024-08-15 18:03:44,023 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 45 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:03:44,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 56 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:03:44,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-08-15 18:03:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2024-08-15 18:03:44,062 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) [2024-08-15 18:03:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2024-08-15 18:03:44,065 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 83 [2024-08-15 18:03:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:03:44,065 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2024-08-15 18:03:44,065 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) [2024-08-15 18:03:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2024-08-15 18:03:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-08-15 18:03:44,067 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:03:44,067 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] [2024-08-15 18:03:44,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:03:44,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:03:44,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:03:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash -117403555, now seen corresponding path program 1 times [2024-08-15 18:03:44,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:03:44,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160649488] [2024-08-15 18:03:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:03:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:03:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-15 18:03:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-08-15 18:03:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-08-15 18:03:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-08-15 18:03:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-15 18:03:44,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:03:44,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160649488] [2024-08-15 18:03:44,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160649488] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:03:44,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669380859] [2024-08-15 18:03:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:03:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:03:44,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:03:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-15 18:03:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:44,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-15 18:03:44,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:03:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-15 18:03:44,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:03:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-08-15 18:03:45,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669380859] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:03:45,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:03:45,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 6] total 12 [2024-08-15 18:03:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38769978] [2024-08-15 18:03:45,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:03:45,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-15 18:03:45,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:03:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-15 18:03:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-08-15 18:03:45,074 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) [2024-08-15 18:03:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:03:45,386 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2024-08-15 18:03:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-15 18:03:45,387 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 [2024-08-15 18:03:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:03:45,389 INFO L225 Difference]: With dead ends: 100 [2024-08-15 18:03:45,389 INFO L226 Difference]: Without dead ends: 100 [2024-08-15 18:03:45,390 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 [2024-08-15 18:03:45,394 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 80 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:03:45,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 71 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:03:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-08-15 18:03:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2024-08-15 18:03:45,414 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) [2024-08-15 18:03:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2024-08-15 18:03:45,418 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 87 [2024-08-15 18:03:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:03:45,418 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2024-08-15 18:03:45,419 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) [2024-08-15 18:03:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2024-08-15 18:03:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-08-15 18:03:45,423 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:03:45,424 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] [2024-08-15 18:03:45,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-15 18:03:45,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:03:45,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:03:45,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:03:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 928380218, now seen corresponding path program 2 times [2024-08-15 18:03:45,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:03:45,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280579242] [2024-08-15 18:03:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:45,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:03:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:03:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:45,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-15 18:03:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-08-15 18:03:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-15 18:03:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-08-15 18:03:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 8 proven. 124 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-08-15 18:03:46,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:03:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280579242] [2024-08-15 18:03:46,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280579242] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:03:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51263082] [2024-08-15 18:03:46,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-15 18:03:46,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:03:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:03:46,058 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) [2024-08-15 18:03:46,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-15 18:03:46,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-15 18:03:46,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-15 18:03:46,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-15 18:03:46,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:03:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 92 proven. 8 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-08-15 18:03:46,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:03:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 18 proven. 114 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-08-15 18:03:46,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51263082] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:03:46,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:03:46,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 10] total 18 [2024-08-15 18:03:46,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839736976] [2024-08-15 18:03:46,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:03:46,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-15 18:03:46,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:03:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-15 18:03:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-08-15 18:03:46,604 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) [2024-08-15 18:03:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:03:47,159 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2024-08-15 18:03:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-15 18:03:47,161 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 [2024-08-15 18:03:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:03:47,162 INFO L225 Difference]: With dead ends: 159 [2024-08-15 18:03:47,164 INFO L226 Difference]: Without dead ends: 138 [2024-08-15 18:03:47,165 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 [2024-08-15 18:03:47,166 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 92 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:03:47,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 117 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:03:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-08-15 18:03:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 102. [2024-08-15 18:03:47,184 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) [2024-08-15 18:03:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2024-08-15 18:03:47,185 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 91 [2024-08-15 18:03:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:03:47,189 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2024-08-15 18:03:47,189 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) [2024-08-15 18:03:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2024-08-15 18:03:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-08-15 18:03:47,190 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:03:47,190 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] [2024-08-15 18:03:47,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-15 18:03:47,391 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 [2024-08-15 18:03:47,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:03:47,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:03:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash -796679273, now seen corresponding path program 3 times [2024-08-15 18:03:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:03:47,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740308122] [2024-08-15 18:03:47,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:47,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:03:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:03:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-15 18:03:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:03:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-08-15 18:03:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-08-15 18:03:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:03:47,702 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-08-15 18:03:47,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:03:47,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740308122] [2024-08-15 18:03:47,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740308122] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:03:47,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928107562] [2024-08-15 18:03:47,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-15 18:03:47,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:03:47,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:03:47,706 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) [2024-08-15 18:03:47,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-15 18:03:47,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-15 18:03:47,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-15 18:03:47,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-15 18:03:47,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:03:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-08-15 18:03:47,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:03:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-08-15 18:03:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928107562] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:03:48,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:03:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 19 [2024-08-15 18:03:48,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559151771] [2024-08-15 18:03:48,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:03:48,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-15 18:03:48,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:03:48,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-15 18:03:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-08-15 18:03:48,279 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) [2024-08-15 18:03:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:03:48,674 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2024-08-15 18:03:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-15 18:03:48,675 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 [2024-08-15 18:03:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:03:48,676 INFO L225 Difference]: With dead ends: 108 [2024-08-15 18:03:48,676 INFO L226 Difference]: Without dead ends: 108 [2024-08-15 18:03:48,677 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 [2024-08-15 18:03:48,678 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 82 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:03:48,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 79 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:03:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-08-15 18:03:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-08-15 18:03:48,696 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) [2024-08-15 18:03:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2024-08-15 18:03:48,698 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 95 [2024-08-15 18:03:48,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:03:48,702 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2024-08-15 18:03:48,703 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) [2024-08-15 18:03:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2024-08-15 18:03:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-08-15 18:03:48,704 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:03:48,704 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] [2024-08-15 18:03:48,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-15 18:03:48,905 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 [2024-08-15 18:03:48,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:03:48,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:03:48,906 INFO L85 PathProgramCache]: Analyzing trace with hash 278794266, now seen corresponding path program 4 times [2024-08-15 18:03:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:03:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474626893] [2024-08-15 18:03:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:03:48,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:03:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-08-15 18:03:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613179161] [2024-08-15 18:03:49,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-15 18:03:49,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:03:49,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:03:49,032 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) [2024-08-15 18:03:49,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-15 18:03:49,160 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-15 18:03:49,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-08-15 18:03:49,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:03:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:03:49,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:03:49,240 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:03:49,241 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-15 18:03:49,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-15 18:03:49,443 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 [2024-08-15 18:03:49,446 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2024-08-15 18:03:49,450 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:03:49,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:03:49 BoogieIcfgContainer [2024-08-15 18:03:49,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:03:49,518 INFO L158 Benchmark]: Toolchain (without parser) took 7370.48ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 107.4MB in the beginning and 104.8MB in the end (delta: 2.6MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2024-08-15 18:03:49,518 INFO L158 Benchmark]: Witness Parser took 0.28ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 129.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:03:49,520 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:03:49,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.24ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 95.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:03:49,520 INFO L158 Benchmark]: Boogie Preprocessor took 72.43ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 92.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:03:49,520 INFO L158 Benchmark]: IcfgBuilder took 406.69ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 77.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:03:49,521 INFO L158 Benchmark]: TraceAbstraction took 6541.09ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 76.9MB in the beginning and 104.8MB in the end (delta: -27.9MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-08-15 18:03:49,522 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 0.28ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 129.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.24ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 95.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.43ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 92.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 406.69ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 77.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6541.09ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 76.9MB in the beginning and 104.8MB in the end (delta: -27.9MB). Peak memory consumption was 35.5MB. 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: 6.4s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 851 IncrementalHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 83 mSDtfsCounter, 851 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=697occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s 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! [2024-08-15 18:03:49,547 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