./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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/goblint-regression/13-privatized_40-traces-ex-6_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.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-dev-2755261-m [2024-01-26 15:18:40,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:40,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:40,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:40,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:40,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:40,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:40,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:40,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:40,483 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:40,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:40,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:40,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:40,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:40,486 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:40,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:40,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:40,486 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:40,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:40,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:40,487 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:40,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:40,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:40,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:40,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:40,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:40,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:40,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:40,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:40,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:40,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:40,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:40,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:40,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:40,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:40,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:40,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:40,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:40,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:40,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:40,492 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:40,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:40,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:40,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:40,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:40,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:40,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:40,750 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:40,751 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:40,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml [2024-01-26 15:18:40,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:40,819 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:40,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-26 15:18:41,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:42,061 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:42,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-26 15:18:42,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa506e177/aa0b2af8696647f39fe84f5d2a846748/FLAGa13c6efb2 [2024-01-26 15:18:42,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa506e177/aa0b2af8696647f39fe84f5d2a846748 [2024-01-26 15:18:42,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:42,098 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:42,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:42,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:42,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:42,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:40" (1/2) ... [2024-01-26 15:18:42,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da61bdc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:42, skipping insertion in model container [2024-01-26 15:18:42,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:40" (1/2) ... [2024-01-26 15:18:42,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5bf29b2b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:42, skipping insertion in model container [2024-01-26 15:18:42,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:42" (2/2) ... [2024-01-26 15:18:42,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da61bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42, skipping insertion in model container [2024-01-26 15:18:42,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:42" (2/2) ... [2024-01-26 15:18:42,107 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:42,130 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] g == 2 [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 2 [2024-01-26 15:18:42,131 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 2 [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-26 15:18:42,132 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-26 15:18:42,166 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:42,323 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-01-26 15:18:42,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:42,459 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:42,471 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:18:42,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:42,574 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:42,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42 WrapperNode [2024-01-26 15:18:42,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:42,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:42,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:42,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:42,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,602 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-01-26 15:18:42,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:42,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:42,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:42,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:42,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,623 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-26 15:18:42,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:42,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:42,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:42,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:42,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (1/1) ... [2024-01-26 15:18:42,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:42,693 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) [2024-01-26 15:18:42,743 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 [2024-01-26 15:18:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:42,777 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:42,908 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:42,910 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:43,045 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:43,046 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:43,208 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:43,209 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:43,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:43 BoogieIcfgContainer [2024-01-26 15:18:43,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:43,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:43,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:43,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:43,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:40" (1/4) ... [2024-01-26 15:18:43,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee763f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:43, skipping insertion in model container [2024-01-26 15:18:43,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:42" (2/4) ... [2024-01-26 15:18:43,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee763f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:43, skipping insertion in model container [2024-01-26 15:18:43,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:42" (3/4) ... [2024-01-26 15:18:43,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee763f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:43, skipping insertion in model container [2024-01-26 15:18:43,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:43" (4/4) ... [2024-01-26 15:18:43,219 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-01-26 15:18:43,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:43,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-01-26 15:18:43,250 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:43,310 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-26 15:18:43,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 112 flow [2024-01-26 15:18:43,354 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-01-26 15:18:43,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:43,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 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 67 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-01-26 15:18:43,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 112 flow [2024-01-26 15:18:43,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 53 transitions, 109 flow [2024-01-26 15:18:43,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:43,371 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;@76d1a71e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:43,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-26 15:18:43,373 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:43,373 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:43,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:43,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:43,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:43,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:43,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash 7399, now seen corresponding path program 1 times [2024-01-26 15:18:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:43,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500326961] [2024-01-26 15:18:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:43,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:43,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500326961] [2024-01-26 15:18:43,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500326961] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:43,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:43,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:43,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774727695] [2024-01-26 15:18:43,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:43,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:43,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-01-26 15:18:43,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-01-26 15:18:43,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:43,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-01-26 15:18:43,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:43,746 INFO L124 PetriNetUnfolderBase]: 87/381 cut-off events. [2024-01-26 15:18:43,746 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:43,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 381 events. 87/381 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2121 event pairs, 60 based on Foata normal form. 26/349 useless extension candidates. Maximal degree in co-relation 595. Up to 165 conditions per place. [2024-01-26 15:18:43,754 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 27 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-01-26 15:18:43,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 181 flow [2024-01-26 15:18:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:43,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-01-26 15:18:43,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-01-26 15:18:43,767 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 109 flow. Second operand 3 states and 120 transitions. [2024-01-26 15:18:43,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 181 flow [2024-01-26 15:18:43,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:43,776 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 132 flow [2024-01-26 15:18:43,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-01-26 15:18:43,782 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-26 15:18:43,782 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 132 flow [2024-01-26 15:18:43,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-01-26 15:18:43,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:43,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-26 15:18:43,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:43,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:43,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash 220709500, now seen corresponding path program 1 times [2024-01-26 15:18:43,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:43,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913174690] [2024-01-26 15:18:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:43,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:43,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:43,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913174690] [2024-01-26 15:18:43,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913174690] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:43,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:43,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:43,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906808718] [2024-01-26 15:18:43,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:43,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:43,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:43,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:43,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:43,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-01-26 15:18:43,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-01-26 15:18:43,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:43,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-01-26 15:18:43,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,097 INFO L124 PetriNetUnfolderBase]: 58/284 cut-off events. [2024-01-26 15:18:44,098 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-01-26 15:18:44,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 284 events. 58/284 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1455 event pairs, 29 based on Foata normal form. 54/319 useless extension candidates. Maximal degree in co-relation 485. Up to 132 conditions per place. [2024-01-26 15:18:44,099 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 21 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-01-26 15:18:44,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 176 flow [2024-01-26 15:18:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:44,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-01-26 15:18:44,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6759259259259259 [2024-01-26 15:18:44,102 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 132 flow. Second operand 4 states and 146 transitions. [2024-01-26 15:18:44,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 176 flow [2024-01-26 15:18:44,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:44,104 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 112 flow [2024-01-26 15:18:44,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2024-01-26 15:18:44,104 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2024-01-26 15:18:44,105 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 112 flow [2024-01-26 15:18:44,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-01-26 15:18:44,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:44,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:44,106 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:44,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1051219167, now seen corresponding path program 1 times [2024-01-26 15:18:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515884450] [2024-01-26 15:18:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:44,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:44,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515884450] [2024-01-26 15:18:44,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515884450] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:44,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:44,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:44,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473192212] [2024-01-26 15:18:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:44,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:44,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:44,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-01-26 15:18:44,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-01-26 15:18:44,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:44,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-01-26 15:18:44,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,317 INFO L124 PetriNetUnfolderBase]: 110/371 cut-off events. [2024-01-26 15:18:44,318 INFO L125 PetriNetUnfolderBase]: For 45/53 co-relation queries the response was YES. [2024-01-26 15:18:44,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 371 events. 110/371 cut-off events. For 45/53 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1909 event pairs, 57 based on Foata normal form. 2/351 useless extension candidates. Maximal degree in co-relation 706. Up to 158 conditions per place. [2024-01-26 15:18:44,323 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 34 selfloop transitions, 10 changer transitions 5/65 dead transitions. [2024-01-26 15:18:44,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 260 flow [2024-01-26 15:18:44,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-01-26 15:18:44,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-01-26 15:18:44,326 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 112 flow. Second operand 5 states and 171 transitions. [2024-01-26 15:18:44,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 260 flow [2024-01-26 15:18:44,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 65 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:44,329 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 169 flow [2024-01-26 15:18:44,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-01-26 15:18:44,330 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-26 15:18:44,330 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 169 flow [2024-01-26 15:18:44,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-01-26 15:18:44,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:44,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:44,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:44,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 240599437, now seen corresponding path program 1 times [2024-01-26 15:18:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:44,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656371530] [2024-01-26 15:18:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:44,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656371530] [2024-01-26 15:18:44,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656371530] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:44,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:44,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:44,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233031523] [2024-01-26 15:18:44,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:44,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:44,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 54 [2024-01-26 15:18:44,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-01-26 15:18:44,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:44,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 54 [2024-01-26 15:18:44,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,465 INFO L124 PetriNetUnfolderBase]: 77/282 cut-off events. [2024-01-26 15:18:44,465 INFO L125 PetriNetUnfolderBase]: For 196/208 co-relation queries the response was YES. [2024-01-26 15:18:44,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 282 events. 77/282 cut-off events. For 196/208 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1285 event pairs, 59 based on Foata normal form. 25/298 useless extension candidates. Maximal degree in co-relation 633. Up to 142 conditions per place. [2024-01-26 15:18:44,468 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 22 selfloop transitions, 2 changer transitions 5/47 dead transitions. [2024-01-26 15:18:44,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 213 flow [2024-01-26 15:18:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-01-26 15:18:44,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7469135802469136 [2024-01-26 15:18:44,472 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 169 flow. Second operand 3 states and 121 transitions. [2024-01-26 15:18:44,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 213 flow [2024-01-26 15:18:44,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-26 15:18:44,478 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 121 flow [2024-01-26 15:18:44,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-01-26 15:18:44,479 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-26 15:18:44,480 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 121 flow [2024-01-26 15:18:44,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-01-26 15:18:44,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:44,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:44,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:44,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:44,482 INFO L85 PathProgramCache]: Analyzing trace with hash 928313909, now seen corresponding path program 1 times [2024-01-26 15:18:44,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:44,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136491816] [2024-01-26 15:18:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:44,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136491816] [2024-01-26 15:18:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136491816] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:44,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288047129] [2024-01-26 15:18:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:44,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:44,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:44,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:44,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:44,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-26 15:18:44,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-01-26 15:18:44,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:44,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-26 15:18:44,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,632 INFO L124 PetriNetUnfolderBase]: 18/128 cut-off events. [2024-01-26 15:18:44,633 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-01-26 15:18:44,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 128 events. 18/128 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 409 event pairs, 4 based on Foata normal form. 5/128 useless extension candidates. Maximal degree in co-relation 249. Up to 40 conditions per place. [2024-01-26 15:18:44,633 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 14 selfloop transitions, 5 changer transitions 4/44 dead transitions. [2024-01-26 15:18:44,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 185 flow [2024-01-26 15:18:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-01-26 15:18:44,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-01-26 15:18:44,635 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 121 flow. Second operand 3 states and 135 transitions. [2024-01-26 15:18:44,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 185 flow [2024-01-26 15:18:44,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 161 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-01-26 15:18:44,637 INFO L231 Difference]: Finished difference. Result has 49 places, 37 transitions, 112 flow [2024-01-26 15:18:44,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2024-01-26 15:18:44,639 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2024-01-26 15:18:44,639 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 112 flow [2024-01-26 15:18:44,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-01-26 15:18:44,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:44,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:44,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:44,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash 709723847, now seen corresponding path program 1 times [2024-01-26 15:18:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046365395] [2024-01-26 15:18:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:44,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046365395] [2024-01-26 15:18:44,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046365395] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:44,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:44,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:18:44,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680476249] [2024-01-26 15:18:44,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:44,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-26 15:18:44,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:44,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-26 15:18:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-26 15:18:44,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-26 15:18:44,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-01-26 15:18:44,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:44,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-26 15:18:44,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,819 INFO L124 PetriNetUnfolderBase]: 12/104 cut-off events. [2024-01-26 15:18:44,820 INFO L125 PetriNetUnfolderBase]: For 51/54 co-relation queries the response was YES. [2024-01-26 15:18:44,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 104 events. 12/104 cut-off events. For 51/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 5 based on Foata normal form. 3/103 useless extension candidates. Maximal degree in co-relation 190. Up to 32 conditions per place. [2024-01-26 15:18:44,820 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 10 selfloop transitions, 5 changer transitions 2/37 dead transitions. [2024-01-26 15:18:44,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 141 flow [2024-01-26 15:18:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-01-26 15:18:44,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7685185185185185 [2024-01-26 15:18:44,821 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 112 flow. Second operand 4 states and 166 transitions. [2024-01-26 15:18:44,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 141 flow [2024-01-26 15:18:44,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 37 transitions, 120 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-26 15:18:44,823 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 92 flow [2024-01-26 15:18:44,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-01-26 15:18:44,826 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -12 predicate places. [2024-01-26 15:18:44,826 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 92 flow [2024-01-26 15:18:44,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-01-26 15:18:44,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:44,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:44,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-26 15:18:44,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1009552455, now seen corresponding path program 1 times [2024-01-26 15:18:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779617500] [2024-01-26 15:18:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:44,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779617500] [2024-01-26 15:18:44,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779617500] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:44,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:44,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:18:44,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805531991] [2024-01-26 15:18:44,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:44,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-26 15:18:44,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-26 15:18:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-26 15:18:44,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-26 15:18:44,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2024-01-26 15:18:44,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:44,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-26 15:18:44,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:44,958 INFO L124 PetriNetUnfolderBase]: 10/71 cut-off events. [2024-01-26 15:18:44,958 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-26 15:18:44,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 71 events. 10/71 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 6 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 122. Up to 23 conditions per place. [2024-01-26 15:18:44,958 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-01-26 15:18:44,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 127 flow [2024-01-26 15:18:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-01-26 15:18:44,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7685185185185185 [2024-01-26 15:18:44,960 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 92 flow. Second operand 4 states and 166 transitions. [2024-01-26 15:18:44,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 127 flow [2024-01-26 15:18:44,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 113 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:18:44,961 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-01-26 15:18:44,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-01-26 15:18:44,961 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -16 predicate places. [2024-01-26 15:18:44,961 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-01-26 15:18:44,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2024-01-26 15:18:44,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (25 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-26 15:18:44,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-26 15:18:44,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-26 15:18:44,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-26 15:18:44,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:18:44,967 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:44,971 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:44,971 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:44,974 INFO L503 ceAbstractionStarter]: Automizer considered 15 witness invariants [2024-01-26 15:18:44,974 INFO L504 ceAbstractionStarter]: WitnessConsidered=15 [2024-01-26 15:18:44,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:44 BasicIcfg [2024-01-26 15:18:44,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:44,989 INFO L158 Benchmark]: Toolchain (without parser) took 2891.03ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 93.2MB in the beginning and 113.3MB in the end (delta: -20.1MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,989 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:44,989 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 153.1MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:44,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.99ms. Allocated memory is still 153.1MB. Free memory was 92.8MB in the beginning and 70.2MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.32ms. Allocated memory is still 153.1MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,989 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 153.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,990 INFO L158 Benchmark]: RCFGBuilder took 573.80ms. Allocated memory is still 153.1MB. Free memory was 66.0MB in the beginning and 118.0MB in the end (delta: -52.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,990 INFO L158 Benchmark]: TraceAbstraction took 1775.72ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 117.3MB in the beginning and 113.3MB in the end (delta: 4.0MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2024-01-26 15:18:44,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.17ms. Allocated memory is still 153.1MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.99ms. Allocated memory is still 153.1MB. Free memory was 92.8MB in the beginning and 70.2MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.32ms. Allocated memory is still 153.1MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 153.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.80ms. Allocated memory is still 153.1MB. Free memory was 66.0MB in the beginning and 118.0MB in the end (delta: -52.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1775.72ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 117.3MB in the beginning and 113.3MB in the end (delta: 4.0MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 237 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337 IncrementalHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 46 mSDtfsCounter, 337 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-26 15:18:45,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE