./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-semi1.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/weaver/test-semi1.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-semi1.wvr.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:21:16,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:21:16,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:21:16,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:21:16,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:21:16,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:21:16,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:21:16,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:21:16,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:21:16,195 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:21:16,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:21:16,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:21:16,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:21:16,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:21:16,197 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:21:16,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:21:16,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:21:16,198 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:21:16,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:21:16,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:21:16,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:21:16,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:21:16,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:21:16,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:21:16,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:21:16,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:21:16,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:21:16,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:21:16,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:21:16,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:21:16,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:21:16,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:21:16,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:21:16,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:21:16,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:21:16,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:21:16,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:21:16,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:21:16,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:21:16,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:21:16,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:21:16,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:21:16,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:21:16,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:21:16,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:21:16,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:21:16,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:21:16,440 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:21:16,441 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:21:16,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-semi1.wvr.yml/witness.yml [2024-02-07 19:21:16,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:21:16,502 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:21:16,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2024-02-07 19:21:17,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:21:17,801 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:21:17,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2024-02-07 19:21:17,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64301f649/83b1a0d4c01348f6ab747cba045eb95b/FLAGd480bfefb [2024-02-07 19:21:17,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64301f649/83b1a0d4c01348f6ab747cba045eb95b [2024-02-07 19:21:17,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:21:17,823 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:21:17,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:21:17,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:21:17,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:21:17,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:21:16" (1/2) ... [2024-02-07 19:21:17,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a9f3a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:21:17, skipping insertion in model container [2024-02-07 19:21:17,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:21:16" (1/2) ... [2024-02-07 19:21:17,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43134df and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:21:17, skipping insertion in model container [2024-02-07 19:21:17,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:21:17" (2/2) ... [2024-02-07 19:21:17,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a9f3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:17, skipping insertion in model container [2024-02-07 19:21:17,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:21:17" (2/2) ... [2024-02-07 19:21:17,833 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:21:17,846 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:21:17,850 INFO L76 edCorrectnessWitness]: Location invariant before [L43-L43] -2147483647 <= x [2024-02-07 19:21:17,850 INFO L76 edCorrectnessWitness]: Location invariant before [L52-L52] x <= 2147483646 [2024-02-07 19:21:17,868 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:21:18,021 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[2005,2018] [2024-02-07 19:21:18,027 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:21:18,035 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-02-07 19:21:18,069 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[2005,2018] [2024-02-07 19:21:18,070 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:21:18,081 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:21:18,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18 WrapperNode [2024-02-07 19:21:18,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:21:18,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:21:18,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:21:18,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:21:18,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,118 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 74 [2024-02-07 19:21:18,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:21:18,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:21:18,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:21:18,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:21:18,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,159 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-02-07 19:21:18,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:21:18,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:21:18,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:21:18,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:21:18,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (1/1) ... [2024-02-07 19:21:18,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:21:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:21:18,200 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) [2024-02-07 19:21:18,209 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 [2024-02-07 19:21:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:21:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 19:21:18,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 19:21:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 19:21:18,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:21:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:21:18,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:21:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:21:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:21:18,235 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:21:18,327 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:21:18,329 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:21:18,446 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:21:18,446 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:21:18,569 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:21:18,570 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:21:18,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:21:18 BoogieIcfgContainer [2024-02-07 19:21:18,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:21:18,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:21:18,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:21:18,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:21:18,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:21:16" (1/4) ... [2024-02-07 19:21:18,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e513056 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:21:18, skipping insertion in model container [2024-02-07 19:21:18,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:21:17" (2/4) ... [2024-02-07 19:21:18,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e513056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:21:18, skipping insertion in model container [2024-02-07 19:21:18,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:21:18" (3/4) ... [2024-02-07 19:21:18,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e513056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:21:18, skipping insertion in model container [2024-02-07 19:21:18,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:21:18" (4/4) ... [2024-02-07 19:21:18,577 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2024-02-07 19:21:18,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:21:18,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-02-07 19:21:18,604 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:21:18,643 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-07 19:21:18,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 56 flow [2024-02-07 19:21:18,688 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-02-07 19:21:18,688 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 19:21:18,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 19 events. 0/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-02-07 19:21:18,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 21 transitions, 56 flow [2024-02-07 19:21:18,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 18 transitions, 48 flow [2024-02-07 19:21:18,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:21:18,708 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;@7b6b3fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:21:18,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-02-07 19:21:18,719 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:21:18,720 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 19:21:18,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:21:18,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:18,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:21:18,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-02-07 19:21:18,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:18,729 INFO L85 PathProgramCache]: Analyzing trace with hash 7221973, now seen corresponding path program 1 times [2024-02-07 19:21:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:18,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041896963] [2024-02-07 19:21:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:18,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041896963] [2024-02-07 19:21:18,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041896963] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:18,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:21:18,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760603485] [2024-02-07 19:21:18,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:18,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:21:18,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:21:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:21:19,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-02-07 19:21:19,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-02-07 19:21:19,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:19,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-02-07 19:21:19,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:19,103 INFO L124 PetriNetUnfolderBase]: 33/78 cut-off events. [2024-02-07 19:21:19,103 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-02-07 19:21:19,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 78 events. 33/78 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 242 event pairs, 33 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 121. Up to 74 conditions per place. [2024-02-07 19:21:19,107 INFO L140 encePairwiseOnDemand]: 19/21 looper letters, 13 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2024-02-07 19:21:19,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 74 flow [2024-02-07 19:21:19,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:21:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:21:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2024-02-07 19:21:19,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-02-07 19:21:19,117 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 3 states and 30 transitions. [2024-02-07 19:21:19,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 74 flow [2024-02-07 19:21:19,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 66 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:21:19,120 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 40 flow [2024-02-07 19:21:19,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2024-02-07 19:21:19,124 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -3 predicate places. [2024-02-07 19:21:19,124 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 40 flow [2024-02-07 19:21:19,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-02-07 19:21:19,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:19,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:21:19,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:21:19,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-02-07 19:21:19,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:19,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1650169967, now seen corresponding path program 1 times [2024-02-07 19:21:19,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:19,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579282725] [2024-02-07 19:21:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:19,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:19,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:19,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579282725] [2024-02-07 19:21:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579282725] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:19,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:19,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:21:19,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725929956] [2024-02-07 19:21:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:19,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:21:19,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:19,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:21:19,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:21:19,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-02-07 19:21:19,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-02-07 19:21:19,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:19,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-02-07 19:21:19,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:19,252 INFO L124 PetriNetUnfolderBase]: 36/93 cut-off events. [2024-02-07 19:21:19,252 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 19:21:19,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 93 events. 36/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 293 event pairs, 10 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 184. Up to 53 conditions per place. [2024-02-07 19:21:19,255 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 21 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2024-02-07 19:21:19,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 27 transitions, 111 flow [2024-02-07 19:21:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:21:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:21:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-02-07 19:21:19,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-02-07 19:21:19,258 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 40 flow. Second operand 3 states and 40 transitions. [2024-02-07 19:21:19,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 27 transitions, 111 flow [2024-02-07 19:21:19,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:21:19,260 INFO L231 Difference]: Finished difference. Result has 25 places, 18 transitions, 57 flow [2024-02-07 19:21:19,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2024-02-07 19:21:19,262 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-02-07 19:21:19,263 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 57 flow [2024-02-07 19:21:19,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-02-07 19:21:19,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:19,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:19,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:21:19,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-02-07 19:21:19,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash -970521197, now seen corresponding path program 1 times [2024-02-07 19:21:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:19,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528971723] [2024-02-07 19:21:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:19,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:19,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528971723] [2024-02-07 19:21:19,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528971723] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:19,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:19,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:21:19,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082631918] [2024-02-07 19:21:19,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:19,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:21:19,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:19,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:21:19,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:21:19,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-02-07 19:21:19,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-02-07 19:21:19,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:19,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-02-07 19:21:19,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:19,375 INFO L124 PetriNetUnfolderBase]: 30/81 cut-off events. [2024-02-07 19:21:19,375 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-02-07 19:21:19,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 81 events. 30/81 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 239 event pairs, 6 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 190. Up to 40 conditions per place. [2024-02-07 19:21:19,376 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 20 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-02-07 19:21:19,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 120 flow [2024-02-07 19:21:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:21:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:21:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2024-02-07 19:21:19,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-02-07 19:21:19,377 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 57 flow. Second operand 4 states and 44 transitions. [2024-02-07 19:21:19,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 120 flow [2024-02-07 19:21:19,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:21:19,379 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 53 flow [2024-02-07 19:21:19,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=53, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2024-02-07 19:21:19,379 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-02-07 19:21:19,379 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 53 flow [2024-02-07 19:21:19,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-02-07 19:21:19,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:19,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:19,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:21:19,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-02-07 19:21:19,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1198360434, now seen corresponding path program 1 times [2024-02-07 19:21:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977700946] [2024-02-07 19:21:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:19,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977700946] [2024-02-07 19:21:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977700946] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:19,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:21:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600393165] [2024-02-07 19:21:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:19,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:21:19,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:19,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:21:19,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:21:19,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-02-07 19:21:19,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-02-07 19:21:19,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:19,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-02-07 19:21:19,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:19,607 INFO L124 PetriNetUnfolderBase]: 30/79 cut-off events. [2024-02-07 19:21:19,607 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-02-07 19:21:19,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 79 events. 30/79 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 216 event pairs, 12 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 187. Up to 43 conditions per place. [2024-02-07 19:21:19,609 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 14 selfloop transitions, 2 changer transitions 9/28 dead transitions. [2024-02-07 19:21:19,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 132 flow [2024-02-07 19:21:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:21:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:21:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2024-02-07 19:21:19,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2024-02-07 19:21:19,612 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 53 flow. Second operand 4 states and 46 transitions. [2024-02-07 19:21:19,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 132 flow [2024-02-07 19:21:19,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:21:19,614 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 50 flow [2024-02-07 19:21:19,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2024-02-07 19:21:19,616 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2024-02-07 19:21:19,616 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 50 flow [2024-02-07 19:21:19,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-02-07 19:21:19,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:19,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:19,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:21:19,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-02-07 19:21:19,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:19,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2014809922, now seen corresponding path program 2 times [2024-02-07 19:21:19,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:19,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885949659] [2024-02-07 19:21:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:19,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:19,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885949659] [2024-02-07 19:21:19,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885949659] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:19,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:19,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:21:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164963210] [2024-02-07 19:21:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:19,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:21:19,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:19,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:21:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:21:19,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-02-07 19:21:19,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-02-07 19:21:19,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:19,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-02-07 19:21:19,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:19,770 INFO L124 PetriNetUnfolderBase]: 18/48 cut-off events. [2024-02-07 19:21:19,771 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-07 19:21:19,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 48 events. 18/48 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 103 event pairs, 4 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 114. Up to 30 conditions per place. [2024-02-07 19:21:19,771 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-02-07 19:21:19,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 94 flow [2024-02-07 19:21:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:21:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:21:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2024-02-07 19:21:19,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-02-07 19:21:19,776 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 4 states and 39 transitions. [2024-02-07 19:21:19,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 94 flow [2024-02-07 19:21:19,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 85 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:21:19,779 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-02-07 19:21:19,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-02-07 19:21:19,781 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -3 predicate places. [2024-02-07 19:21:19,781 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-02-07 19:21:19,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-02-07 19:21:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 7 remaining) [2024-02-07 19:21:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining) [2024-02-07 19:21:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-02-07 19:21:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-02-07 19:21:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-02-07 19:21:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 7 remaining) [2024-02-07 19:21:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 7 remaining) [2024-02-07 19:21:19,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:21:19,785 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-02-07 19:21:19,788 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:21:19,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:21:19,795 INFO L503 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-02-07 19:21:19,795 INFO L504 ceAbstractionStarter]: WitnessConsidered=2 [2024-02-07 19:21:19,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:21:19 BasicIcfg [2024-02-07 19:21:19,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:21:19,797 INFO L158 Benchmark]: Toolchain (without parser) took 1973.79ms. Allocated memory is still 197.1MB. Free memory was 165.1MB in the beginning and 79.4MB in the end (delta: 85.7MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,797 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:21:19,797 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:21:19,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.27ms. Allocated memory is still 197.1MB. Free memory was 164.4MB in the beginning and 151.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.63ms. Allocated memory is still 197.1MB. Free memory was 151.8MB in the beginning and 149.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,801 INFO L158 Benchmark]: Boogie Preprocessor took 57.44ms. Allocated memory is still 197.1MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,801 INFO L158 Benchmark]: RCFGBuilder took 392.86ms. Allocated memory is still 197.1MB. Free memory was 147.6MB in the beginning and 123.2MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,801 INFO L158 Benchmark]: TraceAbstraction took 1224.46ms. Allocated memory is still 197.1MB. Free memory was 122.5MB in the beginning and 79.4MB in the end (delta: 43.1MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-02-07 19:21:19,802 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 0.15ms. Allocated memory is still 130.0MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.27ms. Allocated memory is still 197.1MB. Free memory was 164.4MB in the beginning and 151.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.63ms. Allocated memory is still 197.1MB. Free memory was 151.8MB in the beginning and 149.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.44ms. Allocated memory is still 197.1MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.86ms. Allocated memory is still 197.1MB. Free memory was 147.6MB in the beginning and 123.2MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1224.46ms. Allocated memory is still 197.1MB. Free memory was 122.5MB in the beginning and 79.4MB in the end (delta: 43.1MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 52]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 34 locations, 7 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: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 19:21:19,834 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