./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/pc_sfifo_2.cil-2.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/systemc/pc_sfifo_2.cil-2.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/pc_sfifo_2.cil-2.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 14:34:32,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:34:32,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:34:32,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:34:32,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:34:32,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:34:32,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:34:32,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:34:32,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:34:32,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:34:32,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:34:32,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:34:32,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:34:32,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:34:32,771 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:34:32,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:34:32,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:34:32,772 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:34:32,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:34:32,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:34:32,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:34:32,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:34:32,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:34:32,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:34:32,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:34:32,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:34:32,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:34:32,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:34:32,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:34:32,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:34:32,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:34:32,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:34:32,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:34:32,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:34:32,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:34:32,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:34:32,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:34:32,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:34:32,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:34:32,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:34:32,782 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:34:32,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:34:32,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:34:32,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:34:33,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:34:33,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:34:33,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:34:33,068 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:34:33,069 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:34:33,070 INFO L431 ainManager$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/pc_sfifo_2.cil-2.yml/witness.yml [2024-08-14 14:34:33,208 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:34:33,209 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:34:33,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2024-08-14 14:34:34,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:34:34,802 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:34:34,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2024-08-14 14:34:34,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c681e65/5bacebf8020c468291126800c52056e1/FLAG23fd14b54 [2024-08-14 14:34:35,184 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c681e65/5bacebf8020c468291126800c52056e1 [2024-08-14 14:34:35,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:34:35,186 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:34:35,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:34:35,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:34:35,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:34:35,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:34:33" (1/2) ... [2024-08-14 14:34:35,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677e9bbf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:34:35, skipping insertion in model container [2024-08-14 14:34:35,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:34:33" (1/2) ... [2024-08-14 14:34:35,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@383abdc2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:34:35, skipping insertion in model container [2024-08-14 14:34:35,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:34:35" (2/2) ... [2024-08-14 14:34:35,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677e9bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35, skipping insertion in model container [2024-08-14 14:34:35,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:34:35" (2/2) ... [2024-08-14 14:34:35,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:34:35,361 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c[643,656] [2024-08-14 14:34:35,404 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:34:35,418 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:34:35,432 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c[643,656] [2024-08-14 14:34:35,474 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:34:35,502 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:34:35,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35 WrapperNode [2024-08-14 14:34:35,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:34:35,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:34:35,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:34:35,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:34:35,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,552 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-14 14:34:35,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:34:35,612 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:34:35,613 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:34:35,613 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:34:35,614 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (1/1) ... [2024-08-14 14:34:35,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:34:35,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:34:35,647 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 14:34:35,651 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 14:34:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:34:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-08-14 14:34:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-08-14 14:34:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2024-08-14 14:34:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:34:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2024-08-14 14:34:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-08-14 14:34:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-08-14 14:34:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-08-14 14:34:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2024-08-14 14:34:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2024-08-14 14:34:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-08-14 14:34:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2024-08-14 14:34:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-08-14 14:34:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-08-14 14:34:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-08-14 14:34:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-08-14 14:34:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:34:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:34:35,772 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:34:35,774 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:34:36,113 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-08-14 14:34:36,113 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:34:36,125 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:34:36,126 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:34:36,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:34:36 BoogieIcfgContainer [2024-08-14 14:34:36,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:34:36,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:34:36,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:34:36,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:34:36,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:34:33" (1/4) ... [2024-08-14 14:34:36,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424193bf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:34:36, skipping insertion in model container [2024-08-14 14:34:36,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:34:35" (2/4) ... [2024-08-14 14:34:36,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424193bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:34:36, skipping insertion in model container [2024-08-14 14:34:36,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:34:35" (3/4) ... [2024-08-14 14:34:36,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424193bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:34:36, skipping insertion in model container [2024-08-14 14:34:36,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:34:36" (4/4) ... [2024-08-14 14:34:36,138 INFO L119 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2024-08-14 14:34:36,138 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:34:36,156 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:34:36,156 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:34:36,186 INFO L92 WitnessUtils]: Constructing product of automaton with 145 states and violation witness of the following lengths: [37] [2024-08-14 14:34:36,191 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 145 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 106 states have internal predecessors, (141), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-08-14 14:34:36,927 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 1942 states to 0 states. [2024-08-14 14:34:36,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:34:36,954 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;@767c4f78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:34:36,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:34:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2024-08-14 14:34:36,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-08-14 14:34:36,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:34:36,964 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-08-14 14:34:36,967 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:34:36,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:34:36 BoogieIcfgContainer [2024-08-14 14:34:36,972 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:34:36,973 INFO L158 Benchmark]: Toolchain (without parser) took 1787.04ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 77.5MB in the beginning and 87.2MB in the end (delta: -9.7MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2024-08-14 14:34:36,974 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:34:36,974 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 123.5MB in the end (delta: 217.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:34:36,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.56ms. Allocated memory is still 155.2MB. Free memory was 77.3MB in the beginning and 63.1MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:34:36,976 INFO L158 Benchmark]: Boogie Preprocessor took 106.30ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 123.5MB in the end (delta: -60.4MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-08-14 14:34:36,977 INFO L158 Benchmark]: IcfgBuilder took 514.04ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 123.4MB in the beginning and 160.1MB in the end (delta: -36.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-08-14 14:34:36,978 INFO L158 Benchmark]: TraceAbstraction took 843.69ms. Allocated memory is still 209.7MB. Free memory was 159.1MB in the beginning and 87.2MB in the end (delta: 71.9MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2024-08-14 14:34:36,980 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 0.22ms. Allocated memory is still 155.2MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 123.5MB in the end (delta: 217.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.56ms. Allocated memory is still 155.2MB. Free memory was 77.3MB in the beginning and 63.1MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.30ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 123.5MB in the end (delta: -60.4MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * IcfgBuilder took 514.04ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 123.4MB in the beginning and 160.1MB in the end (delta: -36.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 843.69ms. Allocated memory is still 209.7MB. Free memory was 159.1MB in the beginning and 87.2MB in the end (delta: 71.9MB). Peak memory consumption was 70.8MB. 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 - PositiveResult [Line: 20]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-14 14:34:37,014 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 Result: TRUE