./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/list-properties/list_search-1.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/list_search-1.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/list-properties/list_search-1.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/list_search-1.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 14:29:10,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:29:10,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:29:10,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:29:10,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:29:10,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:29:10,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:29:10,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:29:10,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:29:10,147 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:29:10,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:29:10,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:29:10,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:29:10,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:29:10,148 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:29:10,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:29:10,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:29:10,149 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:29:10,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:29:10,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:29:10,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:29:10,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:29:10,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:29:10,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:29:10,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:29:10,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:29:10,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:29:10,152 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:29:10,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:29:10,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:29:10,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:29:10,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:29:10,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:29:10,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:29:10,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:29:10,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:29:10,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:29:10,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:29:10,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:29:10,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:29:10,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:29:10,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:29:10,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:29:10,333 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:29:10,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2024-08-14 14:29:11,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:29:11,882 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:29:11,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i [2024-08-14 14:29:11,894 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5195a060b/0672344db5164852bfccbdefbf812b05/FLAG03249dd9a [2024-08-14 14:29:12,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5195a060b/0672344db5164852bfccbdefbf812b05 [2024-08-14 14:29:12,275 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:29:12,276 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:29:12,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/list_search-1.yml/witness.yml [2024-08-14 14:29:12,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:29:12,334 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:29:12,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:29:12,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:29:12,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:29:12,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:29:12" (1/2) ... [2024-08-14 14:29:12,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244ef2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:29:12, skipping insertion in model container [2024-08-14 14:29:12,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:29:12" (1/2) ... [2024-08-14 14:29:12,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@491a1855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:29:12, skipping insertion in model container [2024-08-14 14:29:12,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:29:12" (2/2) ... [2024-08-14 14:29:12,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244ef2a6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:29:12, skipping insertion in model container [2024-08-14 14:29:12,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:29:12" (2/2) ... [2024-08-14 14:29:12,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:29:12,510 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i[813,826] [2024-08-14 14:29:12,600 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:29:12,612 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:29:12,623 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i[813,826] [2024-08-14 14:29:12,648 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:29:12,674 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:29:12,675 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:29:12 WrapperNode [2024-08-14 14:29:12,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:29:12,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:29:12,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:29:12,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:29:12,685 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,685 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,698 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,744 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-08-14 14:29:12,745 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,745 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,753 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,755 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,757 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:29:12,766 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:29:12,766 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:29:12,766 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:29:12,767 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 02:29:12" (1/1) ... [2024-08-14 14:29:12,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:29:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:29:12,790 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 14:29:12,795 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 14:29:12,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:29:12,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:29:12,823 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2024-08-14 14:29:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2024-08-14 14:29:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2024-08-14 14:29:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure select [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure random [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2024-08-14 14:29:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2024-08-14 14:29:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2024-08-14 14:29:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2024-08-14 14:29:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2024-08-14 14:29:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure system [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2024-08-14 14:29:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure div [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2024-08-14 14:29:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2024-08-14 14:29:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:29:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:29:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:29:12,989 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:29:12,991 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:29:13,042 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L180: havoc #t~nondet1; [2024-08-14 14:29:13,094 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L185: havoc #t~nondet2; [2024-08-14 14:29:13,123 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-08-14 14:29:13,123 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:29:13,130 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:29:13,130 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:29:13,131 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:29:13 BoogieIcfgContainer [2024-08-14 14:29:13,131 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:29:13,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:29:13,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:29:13,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:29:13,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:29:12" (1/4) ... [2024-08-14 14:29:13,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bae5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:29:13, skipping insertion in model container [2024-08-14 14:29:13,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:29:12" (2/4) ... [2024-08-14 14:29:13,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bae5c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:29:13, skipping insertion in model container [2024-08-14 14:29:13,136 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 02:29:12" (3/4) ... [2024-08-14 14:29:13,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bae5c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:29:13, skipping insertion in model container [2024-08-14 14:29:13,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:29:13" (4/4) ... [2024-08-14 14:29:13,137 INFO L119 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2024-08-14 14:29:13,137 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:29:13,152 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:29:13,153 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:29:13,174 INFO L92 WitnessUtils]: Constructing product of automaton with 46 states and violation witness of the following lengths: [21] [2024-08-14 14:29:13,179 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 46 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-08-14 14:29:13,270 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 367 states to 56 states. [2024-08-14 14:29:13,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:29:13,293 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;@1ef51746, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:29:13,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:29:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2024-08-14 14:29:13,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-08-14 14:29:13,301 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:13,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2024-08-14 14:29:13,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:13,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:13,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1463477789, now seen corresponding path program 1 times [2024-08-14 14:29:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987098415] [2024-08-14 14:29:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:29:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:29:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-08-14 14:29:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:29:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-08-14 14:29:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-08-14 14:29:15,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:15,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987098415] [2024-08-14 14:29:15,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987098415] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:15,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530971748] [2024-08-14 14:29:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:15,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:29:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:29:15,768 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 14:29:15,771 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 14:29:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:15,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 75 conjunts are in the unsatisfiable core [2024-08-14 14:29:15,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:29:15,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-08-14 14:29:15,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-08-14 14:29:16,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-14 14:29:16,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-14 14:29:16,154 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-08-14 14:29:16,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-08-14 14:29:16,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-08-14 14:29:16,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-08-14 14:29:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-14 14:29:16,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:29:17,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530971748] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:17,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-14 14:29:17,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 27 [2024-08-14 14:29:17,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354880831] [2024-08-14 14:29:17,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-14 14:29:17,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-08-14 14:29:17,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:17,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-08-14 14:29:17,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2024-08-14 14:29:17,088 INFO L87 Difference]: Start difference. First operand 56 states. Second operand has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:29:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:18,183 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2024-08-14 14:29:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-14 14:29:18,185 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-08-14 14:29:18,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:18,186 INFO L225 Difference]: With dead ends: 71 [2024-08-14 14:29:18,186 INFO L226 Difference]: Without dead ends: 61 [2024-08-14 14:29:18,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=289, Invalid=2363, Unknown=0, NotChecked=0, Total=2652 [2024-08-14 14:29:18,191 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 126 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-08-14 14:29:18,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 207 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-08-14 14:29:18,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-08-14 14:29:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2024-08-14 14:29:18,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 8 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:29:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2024-08-14 14:29:18,214 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 53 [2024-08-14 14:29:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:18,214 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2024-08-14 14:29:18,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-14 14:29:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2024-08-14 14:29:18,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-08-14 14:29:18,215 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:18,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-08-14 14:29:18,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-08-14 14:29:18,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-08-14 14:29:18,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:18,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2100653046, now seen corresponding path program 2 times [2024-08-14 14:29:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116843525] [2024-08-14 14:29:18,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:18,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:29:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:29:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-08-14 14:29:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:29:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-08-14 14:29:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 14:29:20,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:20,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116843525] [2024-08-14 14:29:20,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116843525] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:20,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991867710] [2024-08-14 14:29:20,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 14:29:20,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:29:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:29:20,442 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 14:29:20,446 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 14:29:20,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 14:29:20,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 14:29:20,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 102 conjunts are in the unsatisfiable core [2024-08-14 14:29:20,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:29:20,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-08-14 14:29:20,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-08-14 14:29:21,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-08-14 14:29:21,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-08-14 14:29:21,225 INFO L349 Elim1Store]: treesize reduction 25, result has 45.7 percent of original size [2024-08-14 14:29:21,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 27 [2024-08-14 14:29:21,247 INFO L349 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2024-08-14 14:29:21,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2024-08-14 14:29:21,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-08-14 14:29:21,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-08-14 14:29:21,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-14 14:29:21,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 54 [2024-08-14 14:29:21,508 INFO L349 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2024-08-14 14:29:21,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 36 [2024-08-14 14:29:21,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-08-14 14:29:21,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2024-08-14 14:29:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 14:29:22,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:29:22,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-14 14:29:22,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2024-08-14 14:29:22,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-14 14:29:22,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2024-08-14 14:29:22,748 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_4 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_~head~0.base_39 Int) (v_ArrVal_474 (Array Int Int))) (or (not (= c_~head~0.base (select v_arrayElimArr_3 4))) (not (= (select |c_#valid| v_~head~0.base_39) 0)) (not (= c_~head~0.offset (select v_arrayElimArr_4 4))) (< 2 (let ((.cse0 (+ c_~head~0.offset 4))) (select (select (store |c_#memory_int#1| v_~head~0.base_39 v_ArrVal_474) (select (select (store |c_#memory_$Pointer$#1.base| v_~head~0.base_39 v_arrayElimArr_3) c_~head~0.base) .cse0)) (select (select (store |c_#memory_$Pointer$#1.offset| v_~head~0.base_39 v_arrayElimArr_4) c_~head~0.base) .cse0)))))) is different from false [2024-08-14 14:29:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991867710] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:22,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-14 14:29:22,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22] total 42 [2024-08-14 14:29:22,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565954678] [2024-08-14 14:29:22,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-14 14:29:22,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-14 14:29:22,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-14 14:29:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2114, Unknown=1, NotChecked=92, Total=2352 [2024-08-14 14:29:22,752 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 42 states, 42 states have (on average 1.8333333333333333) internal successors, (77), 38 states have internal predecessors, (77), 8 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2024-08-14 14:29:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:25,205 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2024-08-14 14:29:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-14 14:29:25,205 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.8333333333333333) internal successors, (77), 38 states have internal predecessors, (77), 8 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) Word has length 58 [2024-08-14 14:29:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:25,206 INFO L225 Difference]: With dead ends: 70 [2024-08-14 14:29:25,206 INFO L226 Difference]: Without dead ends: 67 [2024-08-14 14:29:25,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=474, Invalid=4641, Unknown=1, NotChecked=140, Total=5256 [2024-08-14 14:29:25,208 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 315 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:29:25,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 336 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-08-14 14:29:25,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-08-14 14:29:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2024-08-14 14:29:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 8 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:29:25,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2024-08-14 14:29:25,213 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 58 [2024-08-14 14:29:25,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:25,213 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2024-08-14 14:29:25,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.8333333333333333) internal successors, (77), 38 states have internal predecessors, (77), 8 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2024-08-14 14:29:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2024-08-14 14:29:25,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-08-14 14:29:25,214 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:25,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1] [2024-08-14 14:29:25,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-14 14:29:25,415 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,SelfDestructingSolverStorable1 [2024-08-14 14:29:25,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:25,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:25,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1904139541, now seen corresponding path program 1 times [2024-08-14 14:29:25,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:25,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605044983] [2024-08-14 14:29:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:29:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-08-14 14:29:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-08-14 14:29:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:29:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-08-14 14:29:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 14:29:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:26,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605044983] [2024-08-14 14:29:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605044983] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341187637] [2024-08-14 14:29:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:29:26,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:29:26,325 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 14:29:26,327 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 14:29:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:26,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 60 conjunts are in the unsatisfiable core [2024-08-14 14:29:26,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:29:26,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-08-14 14:29:26,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-14 14:29:26,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-08-14 14:29:26,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2024-08-14 14:29:26,681 INFO L349 Elim1Store]: treesize reduction 25, result has 45.7 percent of original size [2024-08-14 14:29:26,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2024-08-14 14:29:26,690 INFO L349 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2024-08-14 14:29:26,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-08-14 14:29:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 14:29:26,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:29:27,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-14 14:29:27,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2024-08-14 14:29:27,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341187637] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:29:27,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-14 14:29:27,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 29 [2024-08-14 14:29:27,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358494121] [2024-08-14 14:29:27,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-14 14:29:27,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-08-14 14:29:27,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-08-14 14:29:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2024-08-14 14:29:27,184 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 25 states have internal predecessors, (70), 6 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:29:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:28,186 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2024-08-14 14:29:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-14 14:29:28,187 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 25 states have internal predecessors, (70), 6 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 58 [2024-08-14 14:29:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:28,187 INFO L225 Difference]: With dead ends: 65 [2024-08-14 14:29:28,187 INFO L226 Difference]: Without dead ends: 65 [2024-08-14 14:29:28,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=430, Invalid=2650, Unknown=0, NotChecked=0, Total=3080 [2024-08-14 14:29:28,189 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 165 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-08-14 14:29:28,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 214 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-08-14 14:29:28,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-08-14 14:29:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-08-14 14:29:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 49 states have internal predecessors, (52), 8 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-08-14 14:29:28,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2024-08-14 14:29:28,193 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 58 [2024-08-14 14:29:28,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:28,194 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2024-08-14 14:29:28,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 25 states have internal predecessors, (70), 6 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:29:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2024-08-14 14:29:28,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-08-14 14:29:28,195 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:28,195 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 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 14:29:28,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-08-14 14:29:28,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:29:28,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:28,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1783735741, now seen corresponding path program 3 times [2024-08-14 14:29:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:28,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939081595] [2024-08-14 14:29:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:28,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:29:28,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:29:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:29:28,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:29:28,510 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:29:28,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:29:28,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-14 14:29:28,515 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2024-08-14 14:29:28,517 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:29:28,528 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,530 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,532 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,532 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,533 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,533 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,534 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,534 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,535 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,535 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,536 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,536 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,537 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,537 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,537 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,538 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,538 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,539 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,540 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,540 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,540 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,540 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,540 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,541 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,541 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,541 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,541 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,542 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression [2024-08-14 14:29:28,545 WARN L916 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-08-14 14:29:28,552 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:29:28 BoogieIcfgContainer [2024-08-14 14:29:28,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:29:28,553 INFO L158 Benchmark]: Toolchain (without parser) took 16218.20ms. Allocated memory was 205.5MB in the beginning and 509.6MB in the end (delta: 304.1MB). Free memory was 132.4MB in the beginning and 452.0MB in the end (delta: -319.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:29:28,553 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:29:28,554 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 205.5MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:29:28,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.42ms. Allocated memory is still 205.5MB. Free memory was 132.2MB in the beginning and 113.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:29:28,554 INFO L158 Benchmark]: Boogie Preprocessor took 89.27ms. Allocated memory is still 205.5MB. Free memory was 113.7MB in the beginning and 173.5MB in the end (delta: -59.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-14 14:29:28,554 INFO L158 Benchmark]: IcfgBuilder took 365.15ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 149.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-08-14 14:29:28,554 INFO L158 Benchmark]: TraceAbstraction took 15419.38ms. Allocated memory was 205.5MB in the beginning and 509.6MB in the end (delta: 304.1MB). Free memory was 148.3MB in the beginning and 452.0MB in the end (delta: -303.7MB). Peak memory consumption was 972.0kB. Max. memory is 16.1GB. [2024-08-14 14:29:28,555 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 205.5MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.42ms. Allocated memory is still 205.5MB. Free memory was 132.2MB in the beginning and 113.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.27ms. Allocated memory is still 205.5MB. Free memory was 113.7MB in the beginning and 173.5MB in the end (delta: -59.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 365.15ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 149.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15419.38ms. Allocated memory was 205.5MB in the beginning and 509.6MB in the end (delta: 304.1MB). Free memory was 148.3MB in the beginning and 452.0MB in the end (delta: -303.7MB). Peak memory consumption was 972.0kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: TemporaryPointerExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L533] mlist *head; VAL [head={0:0}] [L554] int i; [L555] mlist *mylist, *temp; VAL [head={0:0}] [L556] CALL insert_list(mylist,2) VAL [\old(k)=2, head={0:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=2, head={0:0}, k=2, l={-1:0}] [L544] COND TRUE head==((void *)0) [L545] l->next = ((void *)0) VAL [\old(k)=2, head={0:0}, k=2, l={-1:0}] [L550] head = l [L551] return 0; VAL [\old(k)=2, \result=0, head={-1:0}, k=2] [L556] RET insert_list(mylist,2) VAL [head={-1:0}, mylist={67:62}] [L557] CALL insert_list(mylist,5) VAL [\old(k)=5, head={-1:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=5, head={-1:0}, k=5, l={-5:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=5, head={-1:0}, l={-5:0}] [L550] head = l [L551] return 0; VAL [\old(k)=5, \result=0, head={-5:0}] [L557] RET insert_list(mylist,5) VAL [head={-5:0}, mylist={67:62}] [L558] CALL insert_list(mylist,1) VAL [\old(k)=1, head={-5:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=1, head={-5:0}, k=1, l={-3:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=1, head={-5:0}, l={-3:0}] [L550] head = l [L551] return 0; VAL [\old(k)=1, \result=0, head={-3:0}] [L558] RET insert_list(mylist,1) VAL [head={-3:0}, mylist={67:62}] [L559] CALL insert_list(mylist,3) VAL [\old(k)=3, head={-3:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=3, head={-3:0}, k=3, l={-4:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=3, head={-3:0}, l={-4:0}] [L550] head = l [L551] return 0; VAL [\old(k)=3, \result=0, head={-4:0}] [L559] RET insert_list(mylist,3) VAL [head={-4:0}, mylist={67:62}] [L560] CALL, EXPR search_list(head,2) VAL [\old(k)=2, head={-4:0}] [L535] l = head VAL [\old(k)=2, head={-4:0}, k=2, l={-4:0}] [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-4:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-4:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-3:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-3:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-5:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-5:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-1:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [\old(k)=2, head={-4:0}, k=2, l={-1:0}] [L536] COND FALSE !(l!=((void *)0) && l->key!=k) [L539] return l; VAL [\old(k)=2, \result={-1:0}, head={-4:0}, k=2] [L560] RET, EXPR search_list(head,2) VAL [head={-4:0}, mylist={67:62}] [L560] temp = search_list(head,2) [L561] EXPR temp->key VAL [head={-4:0}, mylist={67:62}] [L561] CALL __VERIFIER_assert(temp->key==1) VAL [\old(cond)=0, head={-4:0}] [L14] COND TRUE !(cond) VAL [\old(cond)=0, head={-4:0}] [L15] reach_error() VAL [\old(cond)=0, head={-4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 757 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 703 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2804 IncrementalHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 54 mSDtfsCounter, 2804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2019 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=2, InterpolantAutomatonStates: 77, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 7625 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1330 ConjunctsInSsa, 237 ConjunctsInUnsatCore, 6 InterpolantComputations, 0 PerfectInterpolantSequences, 138/240 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 14:29:28,578 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