./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/array-fpi/eqn1f.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/eqn1f.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/array-fpi/eqn1f.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/eqn1f.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:11:59,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:11:59,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:11:59,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:11:59,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:11:59,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:11:59,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:11:59,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:11:59,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:11:59,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:11:59,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:11:59,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:11:59,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:11:59,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:11:59,940 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:11:59,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:11:59,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:11:59,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:11:59,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:11:59,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:11:59,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:11:59,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:11:59,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:11:59,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:11:59,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:11:59,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:11:59,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:11:59,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:11:59,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:11:59,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:11:59,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:11:59,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:11:59,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:11:59,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:11:59,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:11:59,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:11:59,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:11:59,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:11:59,951 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:12:00,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:12:00,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:12:00,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:12:00,164 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:12:00,165 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:12:00,166 INFO L431 ainManager$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/eqn1f.yml/witness.yml [2024-08-14 14:12:00,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:12:00,263 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:12:00,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/eqn1f.c [2024-08-14 14:12:01,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:12:01,592 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:12:01,593 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn1f.c [2024-08-14 14:12:01,597 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ce01aba9/194458c6d68b4914a27e1adcdc9bf3f8/FLAGf7165b972 [2024-08-14 14:12:02,015 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ce01aba9/194458c6d68b4914a27e1adcdc9bf3f8 [2024-08-14 14:12:02,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:12:02,017 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:12:02,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:02,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:12:02,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:12:02,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:00" (1/2) ... [2024-08-14 14:12:02,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c947dd9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:00" (1/2) ... [2024-08-14 14:12:02,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@761acdf5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:02" (2/2) ... [2024-08-14 14:12:02,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c947dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:02" (2/2) ... [2024-08-14 14:12:02,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:12:02,149 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn1f.c[588,601] [2024-08-14 14:12:02,174 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:02,185 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:12:02,195 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn1f.c[588,601] [2024-08-14 14:12:02,205 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:02,223 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:12:02,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02 WrapperNode [2024-08-14 14:12:02,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:02,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:12:02,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:12:02,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:12:02,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,289 INFO L175 MemorySlicer]: Split 18 memory accesses to 4 slices as follows [2, 4, 8, 4]. 44 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 8, 0]. The 4 writes are split as follows [0, 2, 0, 2]. [2024-08-14 14:12:02,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:12:02,308 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:12:02,309 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:12:02,309 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:12:02,309 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (1/1) ... [2024-08-14 14:12:02,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:12:02,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:02,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:12:02,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:12:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:12:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:12:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:12:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:12:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:12:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:12:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:12:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:12:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:12:02,431 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:12:02,433 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:12:02,556 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-08-14 14:12:02,556 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:12:02,563 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:12:02,563 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:12:02,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:02 BoogieIcfgContainer [2024-08-14 14:12:02,564 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:12:02,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:12:02,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:12:02,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:12:02,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:00" (1/4) ... [2024-08-14 14:12:02,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b23589a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:12:02" (2/4) ... [2024-08-14 14:12:02,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b23589a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:02" (3/4) ... [2024-08-14 14:12:02,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b23589a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:02, skipping insertion in model container [2024-08-14 14:12:02,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:02" (4/4) ... [2024-08-14 14:12:02,571 INFO L119 eAbstractionObserver]: Analyzing ICFG eqn1f.c [2024-08-14 14:12:02,571 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:12:02,586 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:12:02,586 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:12:02,610 INFO L92 WitnessUtils]: Constructing product of automaton with 41 states and violation witness of the following lengths: [22] [2024-08-14 14:12:02,612 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 41 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-08-14 14:12:02,670 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 268 states to 95 states. [2024-08-14 14:12:02,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:12:02,690 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;@320363ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:12:02,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:12:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2024-08-14 14:12:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-08-14 14:12:02,697 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:02,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-08-14 14:12:02,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:02,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -513324417, now seen corresponding path program 1 times [2024-08-14 14:12:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613901272] [2024-08-14 14:12:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-14 14:12:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-08-14 14:12:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 14:12:02,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:02,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613901272] [2024-08-14 14:12:02,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613901272] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:12:02,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:12:02,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:12:02,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609951177] [2024-08-14 14:12:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:12:02,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:12:02,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:12:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:12:02,980 INFO L87 Difference]: Start difference. First operand 95 states. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-08-14 14:12:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:03,045 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2024-08-14 14:12:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:12:03,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2024-08-14 14:12:03,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:03,048 INFO L225 Difference]: With dead ends: 65 [2024-08-14 14:12:03,048 INFO L226 Difference]: Without dead ends: 63 [2024-08-14 14:12:03,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 14:12:03,053 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:03,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:12:03,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-08-14 14:12:03,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2024-08-14 14:12:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 46 states have internal predecessors, (48), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-08-14 14:12:03,080 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 52 [2024-08-14 14:12:03,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:03,080 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-08-14 14:12:03,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-08-14 14:12:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-08-14 14:12:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-08-14 14:12:03,082 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:03,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-08-14 14:12:03,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:12:03,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:03,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash -750270572, now seen corresponding path program 1 times [2024-08-14 14:12:03,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:03,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042377771] [2024-08-14 14:12:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:03,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:12:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-08-14 14:12:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-08-14 14:12:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:12:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 14:12:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:12:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042377771] [2024-08-14 14:12:03,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042377771] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:12:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686411902] [2024-08-14 14:12:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:03,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:03,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:03,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:03,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:12:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:12:03,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-14 14:12:03,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:12:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 14:12:03,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:12:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 14:12:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686411902] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:12:03,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:12:03,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 14 [2024-08-14 14:12:03,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524097670] [2024-08-14 14:12:03,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:12:03,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-14 14:12:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:12:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-14 14:12:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-08-14 14:12:03,744 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-08-14 14:12:04,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:12:04,006 INFO L93 Difference]: Finished difference Result 101 states and 104 transitions. [2024-08-14 14:12:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 14:12:04,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 54 [2024-08-14 14:12:04,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:12:04,008 INFO L225 Difference]: With dead ends: 101 [2024-08-14 14:12:04,008 INFO L226 Difference]: Without dead ends: 71 [2024-08-14 14:12:04,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-08-14 14:12:04,009 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 48 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:12:04,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 110 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:12:04,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-08-14 14:12:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2024-08-14 14:12:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.0566037735849056) internal successors, (56), 54 states have internal predecessors, (56), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:12:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2024-08-14 14:12:04,018 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 54 [2024-08-14 14:12:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:12:04,019 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2024-08-14 14:12:04,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-08-14 14:12:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2024-08-14 14:12:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-08-14 14:12:04,020 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:04,020 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-08-14 14:12:04,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:12:04,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:04,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:04,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash -257423180, now seen corresponding path program 2 times [2024-08-14 14:12:04,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:04,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395398740] [2024-08-14 14:12:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:04,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-08-14 14:12:04,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121584580] [2024-08-14 14:12:04,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 14:12:04,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:12:04,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:04,273 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:12:04,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-14 14:12:04,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 14:12:04,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-08-14 14:12:04,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:12:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:04,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:12:04,390 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:12:04,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:12:04,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-14 14:12:04,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-14 14:12:04,595 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-08-14 14:12:04,598 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:12:04,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:12:04 BoogieIcfgContainer [2024-08-14 14:12:04,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:12:04,628 INFO L158 Benchmark]: Toolchain (without parser) took 2610.90ms. Allocated memory is still 178.3MB. Free memory was 104.1MB in the beginning and 94.8MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-08-14 14:12:04,628 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 178.3MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:04,628 INFO L158 Benchmark]: CDTParser took 0.06ms. Allocated memory is still 178.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:04,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.73ms. Allocated memory is still 178.3MB. Free memory was 103.8MB in the beginning and 92.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-08-14 14:12:04,630 INFO L158 Benchmark]: Boogie Preprocessor took 83.20ms. Allocated memory is still 178.3MB. Free memory was 92.0MB in the beginning and 147.6MB in the end (delta: -55.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-08-14 14:12:04,630 INFO L158 Benchmark]: IcfgBuilder took 255.21ms. Allocated memory is still 178.3MB. Free memory was 147.6MB in the beginning and 132.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-14 14:12:04,630 INFO L158 Benchmark]: TraceAbstraction took 2062.08ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 94.8MB in the end (delta: 37.2MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-08-14 14:12:04,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 178.3MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.06ms. Allocated memory is still 178.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.73ms. Allocated memory is still 178.3MB. Free memory was 103.8MB in the beginning and 92.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.20ms. Allocated memory is still 178.3MB. Free memory was 92.0MB in the beginning and 147.6MB in the end (delta: -55.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * IcfgBuilder took 255.21ms. Allocated memory is still 178.3MB. Free memory was 147.6MB in the beginning and 132.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2062.08ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 94.8MB in the end (delta: 37.2MB). Peak memory consumption was 39.0MB. 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0, \old(N)=9] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [N=3, \old(N)=0] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=3, \old(N)=0, \old(cond)=1] [L13] COND FALSE !(!cond) VAL [N=3, \old(N)=0, \old(cond)=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=3, \old(N)=0] [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 2 [L32] b[0] = 1 [L33] i=1 VAL [N=3, \old(N)=0, a={-1:0}, b={-2:0}, i=1] [L33] COND TRUE i