./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll_nondet_insert-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-ext3-properties/sll_nondet_insert-1.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll_nondet_insert-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 14:30:06,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:30:06,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:30:06,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:30:06,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:30:06,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:30:06,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:30:06,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:30:06,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:30:06,492 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:30:06,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:30:06,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:30:06,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:30:06,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:30:06,495 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:30:06,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:30:06,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:30:06,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:30:06,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:30:06,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:30:06,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:30:06,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:30:06,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:30:06,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:30:06,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:30:06,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:30:06,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:30:06,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:30:06,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:30:06,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:30:06,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:30:06,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:30:06,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:30:06,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:30:06,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:30:06,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:30:06,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:30:06,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:30:06,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:30:06,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:30:06,506 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:30:06,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:30:06,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:30:06,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:30:06,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:30:06,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:30:06,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:30:06,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:30:06,758 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:30:06,759 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2024-08-14 14:30:08,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:30:08,241 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:30:08,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2024-08-14 14:30:08,255 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01709fe7/4f1c70d049544681ba8204e0d1b357ae/FLAG36446e255 [2024-08-14 14:30:08,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01709fe7/4f1c70d049544681ba8204e0d1b357ae [2024-08-14 14:30:08,273 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:30:08,274 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:30:08,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll_nondet_insert-1.yml/witness.yml [2024-08-14 14:30:08,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:30:08,374 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:30:08,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:08,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:30:08,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:30:08,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:08" (1/2) ... [2024-08-14 14:30:08,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696e2696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:08, skipping insertion in model container [2024-08-14 14:30:08,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:08" (1/2) ... [2024-08-14 14:30:08,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c887a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:08, skipping insertion in model container [2024-08-14 14:30:08,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:08" (2/2) ... [2024-08-14 14:30:08,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696e2696 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:08, skipping insertion in model container [2024-08-14 14:30:08,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:08" (2/2) ... [2024-08-14 14:30:08,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:30:08,707 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-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-08-14 14:30:08,713 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:08,720 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:30:08,770 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-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-08-14 14:30:08,771 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:08,801 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:30:08,802 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:08 WrapperNode [2024-08-14 14:30:08,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:08,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:30:08,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:30:08,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:30:08,813 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,813 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,829 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,854 INFO L175 MemorySlicer]: Split 13 memory accesses to 3 slices as follows [2, 6, 5]. 46 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 4 writes are split as follows [0, 3, 1]. [2024-08-14 14:30:08,855 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,855 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,866 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,868 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,870 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:30:08,878 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:30:08,878 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:30:08,878 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:30:08,878 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 02:30:08" (1/1) ... [2024-08-14 14:30:08,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:30:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:08,909 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 14:30:08,911 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 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2024-08-14 14:30:08,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2024-08-14 14:30:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2024-08-14 14:30:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2024-08-14 14:30:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2024-08-14 14:30:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:30:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:30:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2024-08-14 14:30:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2024-08-14 14:30:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure select [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure random [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2024-08-14 14:30:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2024-08-14 14:30:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2024-08-14 14:30:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2024-08-14 14:30:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2024-08-14 14:30:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2024-08-14 14:30:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2024-08-14 14:30:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2024-08-14 14:30:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure system [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2024-08-14 14:30:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure div [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2024-08-14 14:30:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2024-08-14 14:30:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2024-08-14 14:30:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2024-08-14 14:30:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2024-08-14 14:30:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:30:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:30:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:30:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:30:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:30:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:30:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:30:09,152 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:30:09,154 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:30:09,174 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-08-14 14:30:09,190 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L78: havoc #t~nondet1; [2024-08-14 14:30:09,287 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L628: call ULTIMATE.dealloc(~#s~0.base, ~#s~0.offset);havoc ~#s~0.base, ~#s~0.offset; [2024-08-14 14:30:09,294 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L83: havoc #t~nondet2; [2024-08-14 14:30:09,360 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-08-14 14:30:09,360 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:30:09,368 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:30:09,368 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:30:09,368 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:09 BoogieIcfgContainer [2024-08-14 14:30:09,368 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:30:09,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:30:09,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:30:09,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:30:09,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:30:08" (1/4) ... [2024-08-14 14:30:09,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de042ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:30:09, skipping insertion in model container [2024-08-14 14:30:09,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:08" (2/4) ... [2024-08-14 14:30:09,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de042ae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:09, skipping insertion in model container [2024-08-14 14:30:09,373 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 02:30:08" (3/4) ... [2024-08-14 14:30:09,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de042ae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:09, skipping insertion in model container [2024-08-14 14:30:09,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:09" (4/4) ... [2024-08-14 14:30:09,375 INFO L119 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2024-08-14 14:30:09,375 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:30:09,399 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:30:09,399 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:30:09,419 INFO L92 WitnessUtils]: Constructing product of automaton with 80 states and violation witness of the following lengths: [22] [2024-08-14 14:30:09,422 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 80 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 62 states have internal predecessors, (79), 11 states have call successors, (11), 8 states have call predecessors, (11), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-08-14 14:30:09,526 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 526 states to 94 states. [2024-08-14 14:30:09,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:30:09,549 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;@3ab816b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:30:09,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:30:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2024-08-14 14:30:09,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-08-14 14:30:09,557 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:09,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:09,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:09,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash 463988249, now seen corresponding path program 1 times [2024-08-14 14:30:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:09,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302357122] [2024-08-14 14:30:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:09,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:30:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-08-14 14:30:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-08-14 14:30:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:30:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-08-14 14:30:09,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302357122] [2024-08-14 14:30:09,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302357122] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:30:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213974534] [2024-08-14 14:30:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:09,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:30:09,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:09,888 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 14:30:09,890 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 14:30:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjunts are in the unsatisfiable core [2024-08-14 14:30:10,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:30:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-14 14:30:10,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:30:10,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213974534] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:10,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:30:10,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2024-08-14 14:30:10,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979987403] [2024-08-14 14:30:10,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:10,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 14:30:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:10,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 14:30:10,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:30:10,070 INFO L87 Difference]: Start difference. First operand 94 states. Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:30:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:10,080 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2024-08-14 14:30:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 14:30:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-08-14 14:30:10,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:10,084 INFO L225 Difference]: With dead ends: 94 [2024-08-14 14:30:10,084 INFO L226 Difference]: Without dead ends: 94 [2024-08-14 14:30:10,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:30:10,089 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:10,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:30:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-08-14 14:30:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2024-08-14 14:30:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.16) internal successors, (87), 75 states have internal predecessors, (87), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-08-14 14:30:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-08-14 14:30:10,116 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 55 [2024-08-14 14:30:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:10,116 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-08-14 14:30:10,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:30:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-08-14 14:30:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-08-14 14:30:10,118 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:10,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:10,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:30:10,322 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 14:30:10,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:10,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:10,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1031980860, now seen corresponding path program 1 times [2024-08-14 14:30:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386337843] [2024-08-14 14:30:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:10,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:30:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-08-14 14:30:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-08-14 14:30:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-08-14 14:30:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-14 14:30:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386337843] [2024-08-14 14:30:10,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386337843] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:10,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:10,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-14 14:30:10,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417488780] [2024-08-14 14:30:10,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:10,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-14 14:30:10,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-14 14:30:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:30:10,768 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:30:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:11,018 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2024-08-14 14:30:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 14:30:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-08-14 14:30:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:11,021 INFO L225 Difference]: With dead ends: 125 [2024-08-14 14:30:11,021 INFO L226 Difference]: Without dead ends: 125 [2024-08-14 14:30:11,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-08-14 14:30:11,022 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 74 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:11,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 255 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:30:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-08-14 14:30:11,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 103. [2024-08-14 14:30:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.1627906976744187) internal successors, (100), 86 states have internal predecessors, (100), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2024-08-14 14:30:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2024-08-14 14:30:11,040 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 64 [2024-08-14 14:30:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:11,040 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2024-08-14 14:30:11,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-14 14:30:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2024-08-14 14:30:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-08-14 14:30:11,043 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:11,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:11,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:30:11,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:11,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:11,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1542515037, now seen corresponding path program 1 times [2024-08-14 14:30:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903048914] [2024-08-14 14:30:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:30:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-08-14 14:30:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-08-14 14:30:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-08-14 14:30:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 14:30:11,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:11,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903048914] [2024-08-14 14:30:11,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903048914] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:30:11,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960434569] [2024-08-14 14:30:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:11,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:30:11,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:11,409 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 14:30:11,411 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 14:30:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:11,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 41 conjunts are in the unsatisfiable core [2024-08-14 14:30:11,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:30:11,615 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 15 treesize of output 1 [2024-08-14 14:30:11,890 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 20 treesize of output 12 [2024-08-14 14:30:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 14:30:12,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:30:12,184 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 25 treesize of output 17 [2024-08-14 14:30:12,187 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 21 treesize of output 13 [2024-08-14 14:30:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 14:30:12,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960434569] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:30:12,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:30:12,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 12] total 26 [2024-08-14 14:30:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345323207] [2024-08-14 14:30:12,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:30:12,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-08-14 14:30:12,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-08-14 14:30:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2024-08-14 14:30:12,255 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 22 states have internal predecessors, (83), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:30:24,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:30:36,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:30:48,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:31:01,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:31:13,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:31:25,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:31:37,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-08-14 14:31:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:31:37,208 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2024-08-14 14:31:37,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-14 14:31:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 22 states have internal predecessors, (83), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 64 [2024-08-14 14:31:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:31:37,214 INFO L225 Difference]: With dead ends: 160 [2024-08-14 14:31:37,214 INFO L226 Difference]: Without dead ends: 157 [2024-08-14 14:31:37,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=1175, Unknown=0, NotChecked=0, Total=1332 [2024-08-14 14:31:37,215 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 113 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 17 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.7s IncrementalHoareTripleChecker+Time [2024-08-14 14:31:37,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 746 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1111 Invalid, 7 Unknown, 0 Unchecked, 84.7s Time] [2024-08-14 14:31:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-08-14 14:31:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 122. [2024-08-14 14:31:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 104 states have internal predecessors, (120), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-08-14 14:31:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2024-08-14 14:31:37,224 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 64 [2024-08-14 14:31:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:31:37,227 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2024-08-14 14:31:37,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 22 states have internal predecessors, (83), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:31:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2024-08-14 14:31:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-08-14 14:31:37,228 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:31:37,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:31:37,242 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 14:31:37,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-14 14:31:37,429 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:31:37,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:31:37,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1541053995, now seen corresponding path program 2 times [2024-08-14 14:31:37,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:31:37,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840744258] [2024-08-14 14:31:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:37,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:31:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:31:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-08-14 14:31:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-08-14 14:31:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-08-14 14:31:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:31:37,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:31:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840744258] [2024-08-14 14:31:37,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840744258] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:31:37,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292490197] [2024-08-14 14:31:37,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 14:31:37,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:31:37,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:31:37,826 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 14:31:37,827 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 14:31:37,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 14:31:37,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 14:31:37,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 35 conjunts are in the unsatisfiable core [2024-08-14 14:31:37,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:31:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 14:31:38,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:31:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-14 14:31:38,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292490197] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:31:38,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:31:38,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 15] total 23 [2024-08-14 14:31:38,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263768949] [2024-08-14 14:31:38,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:31:38,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-14 14:31:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:31:38,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-14 14:31:38,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-08-14 14:31:38,201 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 19 states have internal predecessors, (76), 4 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-08-14 14:31:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:31:38,812 INFO L93 Difference]: Finished difference Result 193 states and 231 transitions. [2024-08-14 14:31:38,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-14 14:31:38,812 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 19 states have internal predecessors, (76), 4 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2024-08-14 14:31:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:31:38,813 INFO L225 Difference]: With dead ends: 193 [2024-08-14 14:31:38,813 INFO L226 Difference]: Without dead ends: 191 [2024-08-14 14:31:38,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=1061, Unknown=0, NotChecked=0, Total=1190 [2024-08-14 14:31:38,814 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 110 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-08-14 14:31:38,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 649 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-08-14 14:31:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-08-14 14:31:38,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 146. [2024-08-14 14:31:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 125 states have internal predecessors, (142), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-08-14 14:31:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 169 transitions. [2024-08-14 14:31:38,831 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 169 transitions. Word has length 67 [2024-08-14 14:31:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:31:38,831 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 169 transitions. [2024-08-14 14:31:38,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 19 states have internal predecessors, (76), 4 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-08-14 14:31:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 169 transitions. [2024-08-14 14:31:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-08-14 14:31:38,832 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:31:38,833 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:31:38,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-14 14:31:39,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:31:39,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:31:39,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:31:39,036 INFO L85 PathProgramCache]: Analyzing trace with hash -964824733, now seen corresponding path program 3 times [2024-08-14 14:31:39,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:31:39,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69899578] [2024-08-14 14:31:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:39,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:31:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:31:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-08-14 14:31:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-08-14 14:31:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-08-14 14:31:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 14:31:39,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:31:39,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69899578] [2024-08-14 14:31:39,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69899578] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:31:39,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582594607] [2024-08-14 14:31:39,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-14 14:31:39,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:31:39,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:31:39,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:31:39,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-14 14:31:39,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-08-14 14:31:39,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 14:31:39,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 66 conjunts are in the unsatisfiable core [2024-08-14 14:31:39,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:31:39,918 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 14:31:39,952 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 14:31:39,957 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 14:31:40,008 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 14:31:40,009 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 11 treesize of output 11 [2024-08-14 14:31:40,051 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 23 treesize of output 22 [2024-08-14 14:31:40,057 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 27 treesize of output 15 [2024-08-14 14:31:40,444 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 65 treesize of output 41 [2024-08-14 14:31:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 14:31:40,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:31:41,118 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 72 treesize of output 52 [2024-08-14 14:31:41,120 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 56 treesize of output 36 [2024-08-14 14:31:53,315 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_sll_create_~new_head~0.base_28 Int)) (or (= (select (select (store |c_#memory_$Pointer$#1.offset| v_sll_create_~new_head~0.base_28 (store (select |c_#memory_$Pointer$#1.offset| v_sll_create_~new_head~0.base_28) 0 c_sll_create_~head~0.offset)) c_sll_create_~head~0.base) c_sll_create_~head~0.offset) 0) (not (= (select |c_#valid| v_sll_create_~new_head~0.base_28) 0)))) (forall ((v_sll_create_~new_head~0.base_28 Int)) (or (= 0 (select (select (store |c_#memory_$Pointer$#1.base| v_sll_create_~new_head~0.base_28 (store (select |c_#memory_$Pointer$#1.base| v_sll_create_~new_head~0.base_28) 0 c_sll_create_~head~0.base)) c_sll_create_~head~0.base) c_sll_create_~head~0.offset)) (not (= (select |c_#valid| v_sll_create_~new_head~0.base_28) 0))))) is different from false [2024-08-14 14:31:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 7 not checked. [2024-08-14 14:31:53,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582594607] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:31:53,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:31:53,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 15] total 36 [2024-08-14 14:31:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089129023] [2024-08-14 14:31:53,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:31:53,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-14 14:31:53,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:31:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-14 14:31:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1083, Unknown=1, NotChecked=66, Total=1260 [2024-08-14 14:31:53,568 INFO L87 Difference]: Start difference. First operand 146 states and 169 transitions. Second operand has 36 states, 34 states have (on average 3.323529411764706) internal successors, (113), 32 states have internal predecessors, (113), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:33:07,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:33:07,658 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2024-08-14 14:33:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-14 14:33:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 3.323529411764706) internal successors, (113), 32 states have internal predecessors, (113), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 70 [2024-08-14 14:33:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:33:07,659 INFO L225 Difference]: With dead ends: 251 [2024-08-14 14:33:07,659 INFO L226 Difference]: Without dead ends: 237 [2024-08-14 14:33:07,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 85.7s TimeCoverageRelationStatistics Valid=226, Invalid=2129, Unknown=1, NotChecked=94, Total=2450 [2024-08-14 14:33:07,661 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 129 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:33:07,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 861 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1347 Invalid, 1 Unknown, 124 Unchecked, 1.2s Time] [2024-08-14 14:33:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-08-14 14:33:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2024-08-14 14:33:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 168 states have (on average 1.1607142857142858) internal successors, (195), 172 states have internal predecessors, (195), 15 states have call successors, (15), 11 states have call predecessors, (15), 15 states have return successors, (21), 15 states have call predecessors, (21), 14 states have call successors, (21) [2024-08-14 14:33:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 231 transitions. [2024-08-14 14:33:07,671 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 231 transitions. Word has length 70 [2024-08-14 14:33:07,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:33:07,671 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 231 transitions. [2024-08-14 14:33:07,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 3.323529411764706) internal successors, (113), 32 states have internal predecessors, (113), 5 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-08-14 14:33:07,671 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 231 transitions. [2024-08-14 14:33:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-08-14 14:33:07,672 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:33:07,672 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:33:07,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-14 14:33:07,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:07,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:33:07,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:33:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1889360025, now seen corresponding path program 1 times [2024-08-14 14:33:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:33:07,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234405064] [2024-08-14 14:33:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:33:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:33:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-08-14 14:33:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:33:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-08-14 14:33:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 14:33:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:33:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234405064] [2024-08-14 14:33:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234405064] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:33:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628939967] [2024-08-14 14:33:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:08,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:08,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:33:08,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:33:08,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-14 14:33:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:08,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 14:33:08,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:33:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-14 14:33:08,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:33:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 14:33:08,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628939967] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:33:08,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:33:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 25 [2024-08-14 14:33:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215816010] [2024-08-14 14:33:08,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:33:08,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-14 14:33:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:33:08,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-14 14:33:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-08-14 14:33:08,839 INFO L87 Difference]: Start difference. First operand 199 states and 231 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-08-14 14:33:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:33:09,718 INFO L93 Difference]: Finished difference Result 225 states and 266 transitions. [2024-08-14 14:33:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-14 14:33:09,718 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 72 [2024-08-14 14:33:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:33:09,719 INFO L225 Difference]: With dead ends: 225 [2024-08-14 14:33:09,719 INFO L226 Difference]: Without dead ends: 222 [2024-08-14 14:33:09,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 142 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2024-08-14 14:33:09,721 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 68 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-08-14 14:33:09,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 879 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-08-14 14:33:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-08-14 14:33:09,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 190. [2024-08-14 14:33:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 161 states have (on average 1.1614906832298137) internal successors, (187), 165 states have internal predecessors, (187), 14 states have call successors, (14), 11 states have call predecessors, (14), 14 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) [2024-08-14 14:33:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 219 transitions. [2024-08-14 14:33:09,731 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 219 transitions. Word has length 72 [2024-08-14 14:33:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:33:09,732 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 219 transitions. [2024-08-14 14:33:09,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-08-14 14:33:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 219 transitions. [2024-08-14 14:33:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-08-14 14:33:09,737 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:33:09,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:33:09,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-14 14:33:09,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:09,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:33:09,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:33:09,938 INFO L85 PathProgramCache]: Analyzing trace with hash -86947972, now seen corresponding path program 1 times [2024-08-14 14:33:09,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:33:09,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334456225] [2024-08-14 14:33:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:33:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-08-14 14:33:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-08-14 14:33:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-08-14 14:33:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-08-14 14:33:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 14:33:10,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:33:10,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334456225] [2024-08-14 14:33:10,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334456225] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:33:10,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867686873] [2024-08-14 14:33:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:10,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:10,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:33:10,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:33:10,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-14 14:33:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-14 14:33:10,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:33:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 14:33:10,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:33:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 14:33:11,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867686873] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:33:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:33:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 25 [2024-08-14 14:33:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247339495] [2024-08-14 14:33:11,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:33:11,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-14 14:33:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:33:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-14 14:33:11,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2024-08-14 14:33:11,028 INFO L87 Difference]: Start difference. First operand 190 states and 219 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 22 states have internal predecessors, (97), 4 states have call successors, (9), 3 states have call predecessors, (9), 8 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2024-08-14 14:33:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:33:12,100 INFO L93 Difference]: Finished difference Result 249 states and 298 transitions. [2024-08-14 14:33:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-14 14:33:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 22 states have internal predecessors, (97), 4 states have call successors, (9), 3 states have call predecessors, (9), 8 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 72 [2024-08-14 14:33:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:33:12,102 INFO L225 Difference]: With dead ends: 249 [2024-08-14 14:33:12,102 INFO L226 Difference]: Without dead ends: 239 [2024-08-14 14:33:12,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 137 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=1225, Unknown=0, NotChecked=0, Total=1482 [2024-08-14 14:33:12,103 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 161 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-08-14 14:33:12,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 685 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-08-14 14:33:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-08-14 14:33:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 199. [2024-08-14 14:33:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 169 states have (on average 1.1538461538461537) internal successors, (195), 174 states have internal predecessors, (195), 14 states have call successors, (14), 11 states have call predecessors, (14), 15 states have return successors, (19), 13 states have call predecessors, (19), 13 states have call successors, (19) [2024-08-14 14:33:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 228 transitions. [2024-08-14 14:33:12,113 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 228 transitions. Word has length 72 [2024-08-14 14:33:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:33:12,113 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 228 transitions. [2024-08-14 14:33:12,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 22 states have internal predecessors, (97), 4 states have call successors, (9), 3 states have call predecessors, (9), 8 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2024-08-14 14:33:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 228 transitions. [2024-08-14 14:33:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-08-14 14:33:12,114 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:33:12,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:33:12,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-14 14:33:12,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:12,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:33:12,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:33:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash 874666045, now seen corresponding path program 1 times [2024-08-14 14:33:12,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:33:12,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917699933] [2024-08-14 14:33:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:12,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:33:12,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:33:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:33:12,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:33:12,370 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:33:12,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:33:12,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-14 14:33:12,376 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2024-08-14 14:33:12,379 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:33:12,411 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:33:12 BoogieIcfgContainer [2024-08-14 14:33:12,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:33:12,412 INFO L158 Benchmark]: Toolchain (without parser) took 184037.92ms. Allocated memory was 157.3MB in the beginning and 197.1MB in the end (delta: 39.8MB). Free memory was 129.5MB in the beginning and 131.7MB in the end (delta: -2.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-08-14 14:33:12,412 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:33:12,412 INFO L158 Benchmark]: Witness Parser took 0.63ms. Allocated memory is still 121.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:33:12,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.69ms. Allocated memory is still 157.3MB. Free memory was 129.5MB in the beginning and 110.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-14 14:33:12,412 INFO L158 Benchmark]: Boogie Preprocessor took 73.37ms. Allocated memory is still 157.3MB. Free memory was 110.6MB in the beginning and 106.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:33:12,413 INFO L158 Benchmark]: IcfgBuilder took 490.77ms. Allocated memory is still 157.3MB. Free memory was 106.4MB in the beginning and 78.1MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-08-14 14:33:12,413 INFO L158 Benchmark]: TraceAbstraction took 183041.41ms. Allocated memory was 157.3MB in the beginning and 197.1MB in the end (delta: 39.8MB). Free memory was 77.1MB in the beginning and 131.7MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:33:12,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.63ms. Allocated memory is still 121.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.69ms. Allocated memory is still 157.3MB. Free memory was 129.5MB in the beginning and 110.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.37ms. Allocated memory is still 157.3MB. Free memory was 110.6MB in the beginning and 106.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 490.77ms. Allocated memory is still 157.3MB. Free memory was 106.4MB in the beginning and 78.1MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 183041.41ms. Allocated memory was 157.3MB in the beginning and 197.1MB in the end (delta: 39.8MB). Free memory was 77.1MB in the beginning and 131.7MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 641]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L627] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L620] int len = from; VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; VAL [\old(from)=2, \old(until)=5, \result=2, until=5] [L627] RET, EXPR _get_nondet_int(2, 5) [L627] const int len = _get_nondet_int(2, 5); [L628] SLL s = sll_create(len); VAL [len=2, s={3:0}] [L628] CALL, EXPR sll_create(len) VAL [\old(len)=2] [L575] SLL head = ((void *)0); VAL [\old(len)=2, head={0:0}, len=2] [L576] EXPR len-- VAL [\old(len)=2, head={0:0}, len=1] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=2, head={0:0}, len=1, new_head={-1:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [\old(len)=2, head={-1:0}, len=0] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=2, head={-1:0}, len=0, new_head={-2:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [\old(len)=2, head={-2:0}, len=-1] [L576] COND FALSE !(len-- > 0) [L584] return head; VAL [\old(len)=2, \result={-2:0}, len=-1] [L628] RET, EXPR sll_create(len) VAL [len=2, s={3:0}] [L628] SLL s = sll_create(len); [L629] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L620] int len = from; VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] COND TRUE len < until && __VERIFIER_nondet_int() [L622] len++ VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; VAL [\old(from)=0, \old(until)=1, \result=1, until=1] [L629] RET, EXPR _get_nondet_int(0, len - 1) VAL [len=2, s={3:0}] [L629] const int k = _get_nondet_int(0, len - 1); [L630] int i = 0; VAL [i=0, k=1, len=2, s={3:0}] [L631] i < k && __VERIFIER_nondet_int() VAL [i=0, k=1, len=2, s={3:0}] [L631] i < k && __VERIFIER_nondet_int() [L631] i < k && __VERIFIER_nondet_int() VAL [i=0, k=1, len=2, s={3:0}] [L631] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L636] EXPR \read(s) VAL [i=0, k=1, len=2, s={3:0}] [L636] CALL, EXPR sll_length(s) VAL [\old(head)={-2:0}] [L587] int len = 0; VAL [\old(head)={-2:0}, head={-2:0}, len=0] [L588] COND TRUE \read(head) VAL [\old(head)={-2:0}, head={-2:0}, len=0] [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND TRUE \read(head) VAL [\old(head)={-2:0}, head={-1:0}, len=1] [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND FALSE !(\read(head)) VAL [\old(head)={-2:0}, len=2] [L592] return len; VAL [\old(head)={-2:0}, \result=2] [L636] RET, EXPR sll_length(s) VAL [i=0, k=1, len=2, s={3:0}] [L636] COND TRUE k + len != sll_length(s) [L641] reach_error() VAL [i=0, s={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 183.0s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 161.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 684 SdHoareTripleChecker+Valid, 87.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 655 mSDsluCounter, 4146 SdHoareTripleChecker+Invalid, 87.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 124 IncrementalHoareTripleChecker+Unchecked, 3788 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5195 IncrementalHoareTripleChecker+Invalid, 5456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 358 mSDtfsCounter, 5195 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 955 GetRequests, 749 SyntacticMatches, 8 SemanticMatches, 198 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 88.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 215 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1191 ConstructedInterpolants, 46 QuantifiedInterpolants, 8971 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1591 ConjunctsInSsa, 172 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 278/512 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 14:33:12,469 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