./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix057_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix057_power.oepc_pso.oepc_rmo.oepc.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 --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 22:31:14,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:31:14,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:31:14,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:31:14,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:31:15,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:31:15,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:31:15,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:31:15,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:31:15,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:31:15,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:31:15,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:31:15,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:31:15,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:31:15,118 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:31:15,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:31:15,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:31:15,118 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:31:15,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:31:15,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:31:15,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:31:15,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:31:15,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:31:15,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:31:15,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:31:15,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:31:15,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:31:15,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:31:15,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:31:15,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:31:15,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:31:15,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:31:15,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:31:15,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:31:15,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:31:15,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:31:15,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:31:15,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:31:15,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:31:15,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:31:15,124 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:31:15,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:31:15,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:31:15,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:31:15,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:31:15,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:31:15,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:31:15,344 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:31:15,345 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:31:15,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix057_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 22:31:15,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:31:15,462 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:31:15,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 22:31:16,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:31:16,798 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:31:16,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 22:31:16,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba28aa5d1/72afe0d0d2df46778bc1db59a2313084/FLAG354cbaeb4 [2024-06-27 22:31:16,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba28aa5d1/72afe0d0d2df46778bc1db59a2313084 [2024-06-27 22:31:16,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:31:16,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:31:16,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:31:16,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:31:16,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:31:16,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:31:15" (1/2) ... [2024-06-27 22:31:16,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1846ca11 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:31:16, skipping insertion in model container [2024-06-27 22:31:16,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:31:15" (1/2) ... [2024-06-27 22:31:16,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c7560fe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:31:16, skipping insertion in model container [2024-06-27 22:31:16,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:31:16" (2/2) ... [2024-06-27 22:31:16,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1846ca11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:16, skipping insertion in model container [2024-06-27 22:31:16,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:31:16" (2/2) ... [2024-06-27 22:31:16,841 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:31:16,862 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:31:16,864 INFO L97 edCorrectnessWitness]: Location invariant before [L865-L865] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-27 22:31:16,864 INFO L97 edCorrectnessWitness]: Location invariant before [L862-L862] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-27 22:31:16,865 INFO L97 edCorrectnessWitness]: Location invariant before [L860-L860] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-27 22:31:16,865 INFO L97 edCorrectnessWitness]: Location invariant before [L864-L864] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-27 22:31:16,865 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:31:16,865 INFO L106 edCorrectnessWitness]: ghost_update [L858-L858] multithreaded = 1; [2024-06-27 22:31:16,908 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:31:17,029 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-06-27 22:31:17,214 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:31:17,222 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:31:17,251 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:31:17,447 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:31:17,483 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:31:17,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17 WrapperNode [2024-06-27 22:31:17,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:31:17,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:31:17,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:31:17,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:31:17,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,574 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2024-06-27 22:31:17,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:31:17,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:31:17,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:31:17,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:31:17,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,647 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]. [2024-06-27 22:31:17,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:31:17,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:31:17,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:31:17,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:31:17,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (1/1) ... [2024-06-27 22:31:17,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:31:17,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:31:17,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 22:31:17,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 22:31:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:31:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:31:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:31:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:31:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:31:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:31:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:31:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:31:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:31:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:31:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:31:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:31:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:31:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:31:17,770 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 22:31:17,904 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:31:17,905 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:31:18,446 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:31:18,446 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:31:18,631 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:31:18,632 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:31:18,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:31:18 BoogieIcfgContainer [2024-06-27 22:31:18,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:31:18,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:31:18,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:31:18,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:31:18,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:31:15" (1/4) ... [2024-06-27 22:31:18,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233f350b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:31:18, skipping insertion in model container [2024-06-27 22:31:18,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:31:16" (2/4) ... [2024-06-27 22:31:18,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233f350b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:31:18, skipping insertion in model container [2024-06-27 22:31:18,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:31:17" (3/4) ... [2024-06-27 22:31:18,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233f350b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:31:18, skipping insertion in model container [2024-06-27 22:31:18,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:31:18" (4/4) ... [2024-06-27 22:31:18,641 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 22:31:18,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:31:18,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:31:18,654 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:31:18,710 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:31:18,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:31:18,774 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-06-27 22:31:18,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:31:18,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-06-27 22:31:18,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 22:31:18,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 53 transitions, 118 flow [2024-06-27 22:31:18,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:31:18,804 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;@1749aa8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:31:18,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:31:18,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:31:18,808 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 22:31:18,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:31:18,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:18,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:31:18,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:18,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:18,825 INFO L85 PathProgramCache]: Analyzing trace with hash 370087978, now seen corresponding path program 1 times [2024-06-27 22:31:18,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:18,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248512214] [2024-06-27 22:31:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:20,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:20,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248512214] [2024-06-27 22:31:20,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248512214] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:20,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:20,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:31:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468548189] [2024-06-27 22:31:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:20,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:31:20,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:31:20,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:31:20,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 22:31:20,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:20,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:20,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 22:31:20,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:31:25,201 INFO L124 PetriNetUnfolderBase]: 36812/54629 cut-off events. [2024-06-27 22:31:25,201 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-06-27 22:31:25,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103811 conditions, 54629 events. 36812/54629 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 1920. Compared 400286 event pairs, 32136 based on Foata normal form. 1512/52664 useless extension candidates. Maximal degree in co-relation 103798. Up to 48563 conditions per place. [2024-06-27 22:31:25,655 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 54 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-06-27 22:31:25,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 279 flow [2024-06-27 22:31:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:31:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:31:25,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-06-27 22:31:25,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2024-06-27 22:31:25,668 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 3 states and 111 transitions. [2024-06-27 22:31:25,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 279 flow [2024-06-27 22:31:25,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 70 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:31:25,679 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 153 flow [2024-06-27 22:31:25,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2024-06-27 22:31:25,682 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 22:31:25,683 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 153 flow [2024-06-27 22:31:25,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:25,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:25,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:31:25,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:31:25,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:25,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -827705048, now seen corresponding path program 1 times [2024-06-27 22:31:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314123740] [2024-06-27 22:31:25,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:25,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:26,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:26,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314123740] [2024-06-27 22:31:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314123740] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:26,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:26,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:31:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424293848] [2024-06-27 22:31:26,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:26,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:31:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:26,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:31:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:31:26,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 22:31:26,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:26,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:26,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 22:31:26,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:31:31,298 INFO L124 PetriNetUnfolderBase]: 36813/53550 cut-off events. [2024-06-27 22:31:31,299 INFO L125 PetriNetUnfolderBase]: For 7414/7414 co-relation queries the response was YES. [2024-06-27 22:31:31,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113539 conditions, 53550 events. 36813/53550 cut-off events. For 7414/7414 co-relation queries the response was YES. Maximal size of possible extension queue 1860. Compared 377345 event pairs, 27570 based on Foata normal form. 4/50373 useless extension candidates. Maximal degree in co-relation 113527. Up to 48540 conditions per place. [2024-06-27 22:31:31,551 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 68 selfloop transitions, 10 changer transitions 1/90 dead transitions. [2024-06-27 22:31:31,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 90 transitions, 409 flow [2024-06-27 22:31:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:31:31,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:31:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-06-27 22:31:31,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6096491228070176 [2024-06-27 22:31:31,553 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 153 flow. Second operand 4 states and 139 transitions. [2024-06-27 22:31:31,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 90 transitions, 409 flow [2024-06-27 22:31:31,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:31:31,556 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 237 flow [2024-06-27 22:31:31,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-06-27 22:31:31,557 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 3 predicate places. [2024-06-27 22:31:31,557 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 237 flow [2024-06-27 22:31:31,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:31,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:31,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:31:31,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:31:31,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:31,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 110948431, now seen corresponding path program 1 times [2024-06-27 22:31:31,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:31,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232424981] [2024-06-27 22:31:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:31,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:32,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:32,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232424981] [2024-06-27 22:31:32,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232424981] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:32,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:32,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:31:32,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658759292] [2024-06-27 22:31:32,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:32,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:31:32,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:32,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:31:32,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:31:32,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 22:31:32,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:32,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:32,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 22:31:32,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:31:37,247 INFO L124 PetriNetUnfolderBase]: 36844/53548 cut-off events. [2024-06-27 22:31:37,247 INFO L125 PetriNetUnfolderBase]: For 22560/22560 co-relation queries the response was YES. [2024-06-27 22:31:37,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124259 conditions, 53548 events. 36844/53548 cut-off events. For 22560/22560 co-relation queries the response was YES. Maximal size of possible extension queue 1856. Compared 376951 event pairs, 23911 based on Foata normal form. 7/50394 useless extension candidates. Maximal degree in co-relation 124244. Up to 48440 conditions per place. [2024-06-27 22:31:37,515 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 89 selfloop transitions, 23 changer transitions 2/125 dead transitions. [2024-06-27 22:31:37,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 125 transitions, 665 flow [2024-06-27 22:31:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:31:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:31:37,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2024-06-27 22:31:37,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6421052631578947 [2024-06-27 22:31:37,518 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 237 flow. Second operand 5 states and 183 transitions. [2024-06-27 22:31:37,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 125 transitions, 665 flow [2024-06-27 22:31:37,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 125 transitions, 650 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-06-27 22:31:37,524 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 386 flow [2024-06-27 22:31:37,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=386, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2024-06-27 22:31:37,525 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 9 predicate places. [2024-06-27 22:31:37,525 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 386 flow [2024-06-27 22:31:37,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:37,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:37,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:31:37,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:31:37,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:37,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash -855564761, now seen corresponding path program 1 times [2024-06-27 22:31:37,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:37,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004092016] [2024-06-27 22:31:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:37,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:39,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:39,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004092016] [2024-06-27 22:31:39,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004092016] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:39,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:39,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:31:39,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038570868] [2024-06-27 22:31:39,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:39,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:31:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:31:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:31:39,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 57 [2024-06-27 22:31:39,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:39,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:39,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 57 [2024-06-27 22:31:39,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:31:44,279 INFO L124 PetriNetUnfolderBase]: 36878/54705 cut-off events. [2024-06-27 22:31:44,280 INFO L125 PetriNetUnfolderBase]: For 53829/53835 co-relation queries the response was YES. [2024-06-27 22:31:44,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143297 conditions, 54705 events. 36878/54705 cut-off events. For 53829/53835 co-relation queries the response was YES. Maximal size of possible extension queue 1920. Compared 398964 event pairs, 24465 based on Foata normal form. 11/51549 useless extension candidates. Maximal degree in co-relation 143277. Up to 48387 conditions per place. [2024-06-27 22:31:44,555 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 104 selfloop transitions, 44 changer transitions 3/161 dead transitions. [2024-06-27 22:31:44,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 161 transitions, 1008 flow [2024-06-27 22:31:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:31:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:31:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-06-27 22:31:44,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-06-27 22:31:44,557 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 386 flow. Second operand 7 states and 228 transitions. [2024-06-27 22:31:44,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 161 transitions, 1008 flow [2024-06-27 22:31:44,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 161 transitions, 996 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:31:44,638 INFO L231 Difference]: Finished difference. Result has 84 places, 99 transitions, 662 flow [2024-06-27 22:31:44,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=662, PETRI_PLACES=84, PETRI_TRANSITIONS=99} [2024-06-27 22:31:44,640 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 19 predicate places. [2024-06-27 22:31:44,640 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 99 transitions, 662 flow [2024-06-27 22:31:44,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:44,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:44,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:31:44,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:31:44,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:44,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:44,642 INFO L85 PathProgramCache]: Analyzing trace with hash -752702610, now seen corresponding path program 1 times [2024-06-27 22:31:44,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:44,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778947549] [2024-06-27 22:31:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:46,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:46,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778947549] [2024-06-27 22:31:46,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778947549] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:46,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:46,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 22:31:46,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536211847] [2024-06-27 22:31:46,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:46,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 22:31:46,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:46,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 22:31:46,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 22:31:46,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2024-06-27 22:31:46,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 99 transitions, 662 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:46,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:46,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2024-06-27 22:31:46,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:31:51,294 INFO L124 PetriNetUnfolderBase]: 36935/54776 cut-off events. [2024-06-27 22:31:51,294 INFO L125 PetriNetUnfolderBase]: For 106913/106925 co-relation queries the response was YES. [2024-06-27 22:31:51,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163640 conditions, 54776 events. 36935/54776 cut-off events. For 106913/106925 co-relation queries the response was YES. Maximal size of possible extension queue 1921. Compared 399158 event pairs, 22158 based on Foata normal form. 22/51633 useless extension candidates. Maximal degree in co-relation 163614. Up to 48356 conditions per place. [2024-06-27 22:31:51,633 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 114 selfloop transitions, 47 changer transitions 4/176 dead transitions. [2024-06-27 22:31:51,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 176 transitions, 1270 flow [2024-06-27 22:31:51,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:31:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:31:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 248 transitions. [2024-06-27 22:31:51,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6215538847117794 [2024-06-27 22:31:51,635 INFO L175 Difference]: Start difference. First operand has 84 places, 99 transitions, 662 flow. Second operand 7 states and 248 transitions. [2024-06-27 22:31:51,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 176 transitions, 1270 flow [2024-06-27 22:31:51,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 176 transitions, 1220 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-06-27 22:31:51,798 INFO L231 Difference]: Finished difference. Result has 89 places, 102 transitions, 753 flow [2024-06-27 22:31:51,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=753, PETRI_PLACES=89, PETRI_TRANSITIONS=102} [2024-06-27 22:31:51,798 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 24 predicate places. [2024-06-27 22:31:51,799 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 102 transitions, 753 flow [2024-06-27 22:31:51,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:51,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:31:51,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:31:51,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:31:51,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:31:51,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:31:51,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1327934171, now seen corresponding path program 1 times [2024-06-27 22:31:51,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:31:51,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973984395] [2024-06-27 22:31:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:31:51,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:31:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:31:53,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:31:53,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:31:53,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973984395] [2024-06-27 22:31:53,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973984395] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:31:53,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:31:53,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:31:53,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860302549] [2024-06-27 22:31:53,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:31:53,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:31:53,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:31:53,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:31:53,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:31:53,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 57 [2024-06-27 22:31:53,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 102 transitions, 753 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:31:53,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:31:53,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 57 [2024-06-27 22:31:53,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand