./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c --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/parallel-misc-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 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/parallel-misc-3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-3.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-?-80b1b13-m [2024-01-31 17:00:38,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:00:39,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:00:39,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:00:39,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:00:39,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:00:39,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:00:39,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:00:39,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:00:39,070 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:00:39,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:00:39,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:00:39,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:00:39,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:00:39,072 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:00:39,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:00:39,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:00:39,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:00:39,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:00:39,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:00:39,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:00:39,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:00:39,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:00:39,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:00:39,074 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:00:39,075 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:00:39,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:00:39,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:00:39,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:00:39,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:00:39,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:00:39,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:00:39,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:00:39,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:00:39,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:00:39,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:00:39,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:00:39,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:00:39,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:00:39,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:00:39,078 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:00:39,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:00:39,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:00:39,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:00:39,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:00:39,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:00:39,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:00:39,305 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:00:39,306 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:00:39,307 INFO L431 ainManager$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/parallel-misc-3.wvr.yml/witness.yml [2024-01-31 17:00:39,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:00:39,418 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:00:39,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2024-01-31 17:00:40,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:00:40,704 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:00:40,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2024-01-31 17:00:40,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0d3e247/b1a3070a1b364e2aa1fe845061aa3ecd/FLAG80e5fdb28 [2024-01-31 17:00:40,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0d3e247/b1a3070a1b364e2aa1fe845061aa3ecd [2024-01-31 17:00:40,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:00:40,728 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:00:40,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:00:40,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:00:40,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:00:40,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:00:39" (1/2) ... [2024-01-31 17:00:40,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2010c6de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:00:40, skipping insertion in model container [2024-01-31 17:00:40,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:00:39" (1/2) ... [2024-01-31 17:00:40,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3add57db and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:00:40, skipping insertion in model container [2024-01-31 17:00:40,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:00:40" (2/2) ... [2024-01-31 17:00:40,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2010c6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40, skipping insertion in model container [2024-01-31 17:00:40,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:00:40" (2/2) ... [2024-01-31 17:00:40,740 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:00:40,767 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:00:40,781 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:00:40,928 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/parallel-misc-3.wvr.c[2436,2449] [2024-01-31 17:00:40,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:00:40,942 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:00:40,961 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/parallel-misc-3.wvr.c[2436,2449] [2024-01-31 17:00:40,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:00:40,982 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:00:40,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40 WrapperNode [2024-01-31 17:00:40,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:00:40,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:00:40,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:00:40,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:00:40,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:40,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,014 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2024-01-31 17:00:41,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:00:41,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:00:41,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:00:41,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:00:41,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,067 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]. [2024-01-31 17:00:41,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:00:41,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:00:41,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:00:41,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:00:41,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (1/1) ... [2024-01-31 17:00:41,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:00:41,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:41,143 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) [2024-01-31 17:00:41,151 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 [2024-01-31 17:00:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:00:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:00:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:00:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:00:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:00:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:00:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:00:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:00:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:00:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:00:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:00:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:00:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:00:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:00:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:00:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:00:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:00:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:00:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:00:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:00:41,191 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 17:00:41,295 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:00:41,297 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:00:41,491 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:00:41,491 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:00:41,693 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:00:41,693 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-31 17:00:41,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:00:41 BoogieIcfgContainer [2024-01-31 17:00:41,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:00:41,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:00:41,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:00:41,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:00:41,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:00:39" (1/4) ... [2024-01-31 17:00:41,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fcc21b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:00:41, skipping insertion in model container [2024-01-31 17:00:41,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:00:40" (2/4) ... [2024-01-31 17:00:41,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fcc21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:00:41, skipping insertion in model container [2024-01-31 17:00:41,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:00:40" (3/4) ... [2024-01-31 17:00:41,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fcc21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:00:41, skipping insertion in model container [2024-01-31 17:00:41,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:00:41" (4/4) ... [2024-01-31 17:00:41,701 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2024-01-31 17:00:41,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:00:41,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:00:41,715 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:00:41,751 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-31 17:00:41,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 72 flow [2024-01-31 17:00:41,815 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-01-31 17:00:41,815 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 17:00:41,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 4/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-01-31 17:00:41,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 72 flow [2024-01-31 17:00:41,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 64 flow [2024-01-31 17:00:41,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:00:41,844 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;@6ea81071, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:00:41,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-01-31 17:00:41,855 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:00:41,856 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2024-01-31 17:00:41,856 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 17:00:41,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:41,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:41,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:41,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1640783155, now seen corresponding path program 1 times [2024-01-31 17:00:41,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:41,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051450320] [2024-01-31 17:00:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:00:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051450320] [2024-01-31 17:00:42,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051450320] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:42,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:42,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:00:42,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671107849] [2024-01-31 17:00:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:00:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:00:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:00:42,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:42,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-01-31 17:00:42,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:42,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:42,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:42,211 INFO L124 PetriNetUnfolderBase]: 140/271 cut-off events. [2024-01-31 17:00:42,212 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-01-31 17:00:42,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 271 events. 140/271 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1044 event pairs, 13 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 404. Up to 178 conditions per place. [2024-01-31 17:00:42,217 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 23 selfloop transitions, 5 changer transitions 1/38 dead transitions. [2024-01-31 17:00:42,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 155 flow [2024-01-31 17:00:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:00:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:00:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-01-31 17:00:42,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-01-31 17:00:42,229 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 64 flow. Second operand 3 states and 63 transitions. [2024-01-31 17:00:42,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 155 flow [2024-01-31 17:00:42,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 38 transitions, 141 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-31 17:00:42,233 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 89 flow [2024-01-31 17:00:42,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2024-01-31 17:00:42,237 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2024-01-31 17:00:42,237 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 89 flow [2024-01-31 17:00:42,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-01-31 17:00:42,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:42,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:42,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:00:42,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:42,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1635887699, now seen corresponding path program 1 times [2024-01-31 17:00:42,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:42,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507663000] [2024-01-31 17:00:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:42,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:00:42,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:42,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507663000] [2024-01-31 17:00:42,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507663000] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:42,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:00:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595333456] [2024-01-31 17:00:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:42,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:00:42,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:42,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:00:42,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:00:42,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-01-31 17:00:42,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-01-31 17:00:42,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:42,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-01-31 17:00:42,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:42,400 INFO L124 PetriNetUnfolderBase]: 113/240 cut-off events. [2024-01-31 17:00:42,401 INFO L125 PetriNetUnfolderBase]: For 52/76 co-relation queries the response was YES. [2024-01-31 17:00:42,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 240 events. 113/240 cut-off events. For 52/76 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 927 event pairs, 12 based on Foata normal form. 11/211 useless extension candidates. Maximal degree in co-relation 217. Up to 90 conditions per place. [2024-01-31 17:00:42,402 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 23 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-01-31 17:00:42,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 160 flow [2024-01-31 17:00:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:00:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:00:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-01-31 17:00:42,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-01-31 17:00:42,404 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 89 flow. Second operand 3 states and 63 transitions. [2024-01-31 17:00:42,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 160 flow [2024-01-31 17:00:42,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 153 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-31 17:00:42,406 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 94 flow [2024-01-31 17:00:42,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2024-01-31 17:00:42,406 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2024-01-31 17:00:42,406 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 94 flow [2024-01-31 17:00:42,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-01-31 17:00:42,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:42,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:42,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:00:42,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:42,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash -29248973, now seen corresponding path program 1 times [2024-01-31 17:00:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616260170] [2024-01-31 17:00:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:42,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:00:42,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616260170] [2024-01-31 17:00:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616260170] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:42,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:42,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:00:42,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597383925] [2024-01-31 17:00:42,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:42,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:00:42,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:00:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:00:42,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-01-31 17:00:42,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 17:00:42,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:42,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-01-31 17:00:42,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:42,548 INFO L124 PetriNetUnfolderBase]: 114/230 cut-off events. [2024-01-31 17:00:42,548 INFO L125 PetriNetUnfolderBase]: For 96/130 co-relation queries the response was YES. [2024-01-31 17:00:42,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 230 events. 114/230 cut-off events. For 96/130 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 832 event pairs, 11 based on Foata normal form. 11/201 useless extension candidates. Maximal degree in co-relation 195. Up to 116 conditions per place. [2024-01-31 17:00:42,553 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 25 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-01-31 17:00:42,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 40 transitions, 178 flow [2024-01-31 17:00:42,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:00:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:00:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-01-31 17:00:42,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-01-31 17:00:42,557 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 94 flow. Second operand 3 states and 63 transitions. [2024-01-31 17:00:42,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 40 transitions, 178 flow [2024-01-31 17:00:42,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 40 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 17:00:42,558 INFO L231 Difference]: Finished difference. Result has 32 places, 32 transitions, 104 flow [2024-01-31 17:00:42,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=32, PETRI_TRANSITIONS=32} [2024-01-31 17:00:42,559 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-01-31 17:00:42,559 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 32 transitions, 104 flow [2024-01-31 17:00:42,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 17:00:42,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:42,560 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] [2024-01-31 17:00:42,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:00:42,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:42,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash 690344439, now seen corresponding path program 1 times [2024-01-31 17:00:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:42,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024574360] [2024-01-31 17:00:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:00:42,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:42,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024574360] [2024-01-31 17:00:42,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024574360] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:42,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:42,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:00:42,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436532765] [2024-01-31 17:00:42,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:42,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:00:42,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:00:42,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:00:42,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-01-31 17:00:42,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 17:00:42,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:42,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-01-31 17:00:42,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:42,688 INFO L124 PetriNetUnfolderBase]: 115/230 cut-off events. [2024-01-31 17:00:42,689 INFO L125 PetriNetUnfolderBase]: For 88/132 co-relation queries the response was YES. [2024-01-31 17:00:42,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 230 events. 115/230 cut-off events. For 88/132 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 861 event pairs, 11 based on Foata normal form. 10/213 useless extension candidates. Maximal degree in co-relation 207. Up to 139 conditions per place. [2024-01-31 17:00:42,690 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 24 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-01-31 17:00:42,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 175 flow [2024-01-31 17:00:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:00:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:00:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-01-31 17:00:42,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2024-01-31 17:00:42,692 INFO L175 Difference]: Start difference. First operand has 32 places, 32 transitions, 104 flow. Second operand 3 states and 60 transitions. [2024-01-31 17:00:42,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 175 flow [2024-01-31 17:00:42,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 17:00:42,693 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 106 flow [2024-01-31 17:00:42,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2024-01-31 17:00:42,694 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2024-01-31 17:00:42,694 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 106 flow [2024-01-31 17:00:42,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 17:00:42,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:42,695 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] [2024-01-31 17:00:42,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 17:00:42,695 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:42,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash 334107095, now seen corresponding path program 1 times [2024-01-31 17:00:42,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:42,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915871026] [2024-01-31 17:00:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:00:42,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:42,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915871026] [2024-01-31 17:00:42,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915871026] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:42,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:42,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 17:00:42,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356297169] [2024-01-31 17:00:42,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:42,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:00:42,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:42,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:00:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:00:42,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:42,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-01-31 17:00:42,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:42,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:42,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:42,925 INFO L124 PetriNetUnfolderBase]: 244/469 cut-off events. [2024-01-31 17:00:42,925 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-01-31 17:00:42,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 469 events. 244/469 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2070 event pairs, 44 based on Foata normal form. 12/434 useless extension candidates. Maximal degree in co-relation 331. Up to 145 conditions per place. [2024-01-31 17:00:42,928 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 36 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-01-31 17:00:42,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 258 flow [2024-01-31 17:00:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:00:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:00:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-01-31 17:00:42,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7068965517241379 [2024-01-31 17:00:42,930 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 106 flow. Second operand 4 states and 82 transitions. [2024-01-31 17:00:42,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 258 flow [2024-01-31 17:00:42,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 51 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:00:42,932 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 134 flow [2024-01-31 17:00:42,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-01-31 17:00:42,933 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-01-31 17:00:42,933 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 134 flow [2024-01-31 17:00:42,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-01-31 17:00:42,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:42,933 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:42,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 17:00:42,934 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:42,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1020248867, now seen corresponding path program 1 times [2024-01-31 17:00:42,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:42,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486673242] [2024-01-31 17:00:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:42,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:00:43,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:43,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486673242] [2024-01-31 17:00:43,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486673242] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:43,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039506099] [2024-01-31 17:00:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:43,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:43,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:43,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:00:43,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-31 17:00:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:43,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2024-01-31 17:00:43,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:00:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:00:43,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-31 17:00:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039506099] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-31 17:00:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-01-31 17:00:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997271534] [2024-01-31 17:00:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:43,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:00:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:00:43,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:00:43,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:43,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-01-31 17:00:43,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:43,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:43,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:43,389 INFO L124 PetriNetUnfolderBase]: 220/484 cut-off events. [2024-01-31 17:00:43,389 INFO L125 PetriNetUnfolderBase]: For 503/540 co-relation queries the response was YES. [2024-01-31 17:00:43,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 484 events. 220/484 cut-off events. For 503/540 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2219 event pairs, 26 based on Foata normal form. 14/472 useless extension candidates. Maximal degree in co-relation 471. Up to 254 conditions per place. [2024-01-31 17:00:43,392 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 31 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-01-31 17:00:43,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 269 flow [2024-01-31 17:00:43,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:00:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:00:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-01-31 17:00:43,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6637931034482759 [2024-01-31 17:00:43,394 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 134 flow. Second operand 4 states and 77 transitions. [2024-01-31 17:00:43,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 269 flow [2024-01-31 17:00:43,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 267 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-31 17:00:43,398 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 197 flow [2024-01-31 17:00:43,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2024-01-31 17:00:43,401 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 13 predicate places. [2024-01-31 17:00:43,401 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 197 flow [2024-01-31 17:00:43,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-01-31 17:00:43,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:43,402 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:43,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-31 17:00:43,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-01-31 17:00:43,613 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:43,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash 625596813, now seen corresponding path program 2 times [2024-01-31 17:00:43,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:43,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137024054] [2024-01-31 17:00:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:00:43,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137024054] [2024-01-31 17:00:43,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137024054] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:43,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360859798] [2024-01-31 17:00:43,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-31 17:00:43,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:43,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:43,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:00:43,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-31 17:00:43,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-31 17:00:43,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:00:43,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2024-01-31 17:00:43,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:00:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:00:43,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:00:44,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:00:44,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360859798] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:44,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-31 17:00:44,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2024-01-31 17:00:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512013006] [2024-01-31 17:00:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:44,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:00:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:00:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-01-31 17:00:44,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2024-01-31 17:00:44,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-01-31 17:00:44,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:44,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2024-01-31 17:00:44,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:44,303 INFO L124 PetriNetUnfolderBase]: 494/985 cut-off events. [2024-01-31 17:00:44,303 INFO L125 PetriNetUnfolderBase]: For 1220/1270 co-relation queries the response was YES. [2024-01-31 17:00:44,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 985 events. 494/985 cut-off events. For 1220/1270 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5232 event pairs, 133 based on Foata normal form. 20/983 useless extension candidates. Maximal degree in co-relation 996. Up to 354 conditions per place. [2024-01-31 17:00:44,310 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 65 selfloop transitions, 18 changer transitions 0/93 dead transitions. [2024-01-31 17:00:44,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 93 transitions, 604 flow [2024-01-31 17:00:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:00:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:00:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-01-31 17:00:44,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6954022988505747 [2024-01-31 17:00:44,311 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 197 flow. Second operand 6 states and 121 transitions. [2024-01-31 17:00:44,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 93 transitions, 604 flow [2024-01-31 17:00:44,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 93 transitions, 602 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-31 17:00:44,315 INFO L231 Difference]: Finished difference. Result has 51 places, 52 transitions, 334 flow [2024-01-31 17:00:44,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=51, PETRI_TRANSITIONS=52} [2024-01-31 17:00:44,316 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 22 predicate places. [2024-01-31 17:00:44,316 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 52 transitions, 334 flow [2024-01-31 17:00:44,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-01-31 17:00:44,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:44,316 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:44,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-31 17:00:44,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-01-31 17:00:44,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:44,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash 500749275, now seen corresponding path program 3 times [2024-01-31 17:00:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:44,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731749790] [2024-01-31 17:00:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:00:44,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:44,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731749790] [2024-01-31 17:00:44,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731749790] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:44,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570266165] [2024-01-31 17:00:44,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-31 17:00:44,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:44,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:44,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:00:44,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-31 17:00:44,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-01-31 17:00:44,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:00:44,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-31 17:00:44,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:00:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-31 17:00:44,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:00:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-31 17:00:44,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570266165] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:00:44,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:00:44,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 8 [2024-01-31 17:00:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856587828] [2024-01-31 17:00:44,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:00:44,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-31 17:00:44,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-31 17:00:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-01-31 17:00:44,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2024-01-31 17:00:44,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 52 transitions, 334 flow. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 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) [2024-01-31 17:00:44,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:44,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2024-01-31 17:00:44,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:45,088 INFO L124 PetriNetUnfolderBase]: 574/1094 cut-off events. [2024-01-31 17:00:45,089 INFO L125 PetriNetUnfolderBase]: For 2339/2450 co-relation queries the response was YES. [2024-01-31 17:00:45,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 1094 events. 574/1094 cut-off events. For 2339/2450 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5409 event pairs, 113 based on Foata normal form. 88/1126 useless extension candidates. Maximal degree in co-relation 1611. Up to 244 conditions per place. [2024-01-31 17:00:45,099 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 81 selfloop transitions, 21 changer transitions 0/113 dead transitions. [2024-01-31 17:00:45,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 113 transitions, 877 flow [2024-01-31 17:00:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:00:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:00:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2024-01-31 17:00:45,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6163793103448276 [2024-01-31 17:00:45,101 INFO L175 Difference]: Start difference. First operand has 51 places, 52 transitions, 334 flow. Second operand 8 states and 143 transitions. [2024-01-31 17:00:45,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 113 transitions, 877 flow [2024-01-31 17:00:45,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 113 transitions, 861 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-01-31 17:00:45,110 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 437 flow [2024-01-31 17:00:45,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=437, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2024-01-31 17:00:45,113 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2024-01-31 17:00:45,113 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 437 flow [2024-01-31 17:00:45,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 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) [2024-01-31 17:00:45,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:45,113 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:45,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-31 17:00:45,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:45,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:45,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:45,327 INFO L85 PathProgramCache]: Analyzing trace with hash 241026939, now seen corresponding path program 1 times [2024-01-31 17:00:45,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:45,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198887539] [2024-01-31 17:00:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:45,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:00:45,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:45,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198887539] [2024-01-31 17:00:45,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198887539] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:45,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594004768] [2024-01-31 17:00:45,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:45,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:45,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:45,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:00:45,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-31 17:00:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:45,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2024-01-31 17:00:45,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:00:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:00:45,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:00:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:00:45,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594004768] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:00:45,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:00:45,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-01-31 17:00:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698600757] [2024-01-31 17:00:45,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:00:45,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:00:45,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:45,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:00:45,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:00:45,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:45,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-01-31 17:00:45,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:45,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:45,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:46,043 INFO L124 PetriNetUnfolderBase]: 1984/4035 cut-off events. [2024-01-31 17:00:46,043 INFO L125 PetriNetUnfolderBase]: For 9300/9461 co-relation queries the response was YES. [2024-01-31 17:00:46,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14960 conditions, 4035 events. 1984/4035 cut-off events. For 9300/9461 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 28239 event pairs, 179 based on Foata normal form. 38/3962 useless extension candidates. Maximal degree in co-relation 5978. Up to 1078 conditions per place. [2024-01-31 17:00:46,071 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 136 selfloop transitions, 19 changer transitions 2/179 dead transitions. [2024-01-31 17:00:46,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 179 transitions, 1674 flow [2024-01-31 17:00:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:00:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:00:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2024-01-31 17:00:46,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8218390804597702 [2024-01-31 17:00:46,072 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 437 flow. Second operand 6 states and 143 transitions. [2024-01-31 17:00:46,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 179 transitions, 1674 flow [2024-01-31 17:00:46,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 179 transitions, 1558 flow, removed 52 selfloop flow, removed 2 redundant places. [2024-01-31 17:00:46,142 INFO L231 Difference]: Finished difference. Result has 62 places, 75 transitions, 524 flow [2024-01-31 17:00:46,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=62, PETRI_TRANSITIONS=75} [2024-01-31 17:00:46,143 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-01-31 17:00:46,143 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 75 transitions, 524 flow [2024-01-31 17:00:46,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-01-31 17:00:46,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:46,143 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:46,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-31 17:00:46,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:46,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:46,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1588030549, now seen corresponding path program 2 times [2024-01-31 17:00:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143782163] [2024-01-31 17:00:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:46,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:00:46,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:46,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143782163] [2024-01-31 17:00:46,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143782163] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:00:46,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518563133] [2024-01-31 17:00:46,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-31 17:00:46,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:00:46,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:00:46,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:00:46,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-31 17:00:46,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-31 17:00:46,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:00:46,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 17 conjunts are in the unsatisfiable core [2024-01-31 17:00:46,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:00:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:00:46,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:00:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-31 17:00:47,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518563133] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:00:47,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:00:47,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 18 [2024-01-31 17:00:47,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943159902] [2024-01-31 17:00:47,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:00:47,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-01-31 17:00:47,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:47,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-01-31 17:00:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-01-31 17:00:47,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2024-01-31 17:00:47,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 75 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 10.777777777777779) internal successors, (194), 18 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) [2024-01-31 17:00:47,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:47,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2024-01-31 17:00:47,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:47,956 INFO L124 PetriNetUnfolderBase]: 4196/7092 cut-off events. [2024-01-31 17:00:47,957 INFO L125 PetriNetUnfolderBase]: For 14047/14143 co-relation queries the response was YES. [2024-01-31 17:00:47,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26494 conditions, 7092 events. 4196/7092 cut-off events. For 14047/14143 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 42560 event pairs, 329 based on Foata normal form. 168/7251 useless extension candidates. Maximal degree in co-relation 10919. Up to 1512 conditions per place. [2024-01-31 17:00:48,014 INFO L140 encePairwiseOnDemand]: 20/29 looper letters, 100 selfloop transitions, 74 changer transitions 0/188 dead transitions. [2024-01-31 17:00:48,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 188 transitions, 1498 flow [2024-01-31 17:00:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-31 17:00:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-31 17:00:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 201 transitions. [2024-01-31 17:00:48,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49507389162561577 [2024-01-31 17:00:48,016 INFO L175 Difference]: Start difference. First operand has 62 places, 75 transitions, 524 flow. Second operand 14 states and 201 transitions. [2024-01-31 17:00:48,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 188 transitions, 1498 flow [2024-01-31 17:00:48,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 188 transitions, 1410 flow, removed 32 selfloop flow, removed 1 redundant places. [2024-01-31 17:00:48,032 INFO L231 Difference]: Finished difference. Result has 82 places, 121 transitions, 1077 flow [2024-01-31 17:00:48,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1077, PETRI_PLACES=82, PETRI_TRANSITIONS=121} [2024-01-31 17:00:48,032 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 53 predicate places. [2024-01-31 17:00:48,033 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 121 transitions, 1077 flow [2024-01-31 17:00:48,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.777777777777779) internal successors, (194), 18 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) [2024-01-31 17:00:48,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:48,033 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:48,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-31 17:00:48,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-01-31 17:00:48,244 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:48,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1464806925, now seen corresponding path program 3 times [2024-01-31 17:00:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:48,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724124889] [2024-01-31 17:00:48,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:00:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724124889] [2024-01-31 17:00:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724124889] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:48,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:48,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:00:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426659272] [2024-01-31 17:00:48,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:48,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:00:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:48,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:00:48,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:00:48,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:48,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 121 transitions, 1077 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-01-31 17:00:48,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:48,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:48,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:48,640 INFO L124 PetriNetUnfolderBase]: 989/2133 cut-off events. [2024-01-31 17:00:48,640 INFO L125 PetriNetUnfolderBase]: For 10155/10310 co-relation queries the response was YES. [2024-01-31 17:00:48,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9062 conditions, 2133 events. 989/2133 cut-off events. For 10155/10310 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 13535 event pairs, 174 based on Foata normal form. 181/2261 useless extension candidates. Maximal degree in co-relation 4721. Up to 635 conditions per place. [2024-01-31 17:00:48,654 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 60 selfloop transitions, 17 changer transitions 0/117 dead transitions. [2024-01-31 17:00:48,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 117 transitions, 1170 flow [2024-01-31 17:00:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:00:48,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:00:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-01-31 17:00:48,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5948275862068966 [2024-01-31 17:00:48,656 INFO L175 Difference]: Start difference. First operand has 82 places, 121 transitions, 1077 flow. Second operand 4 states and 69 transitions. [2024-01-31 17:00:48,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 117 transitions, 1170 flow [2024-01-31 17:00:48,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 117 transitions, 1109 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-01-31 17:00:48,671 INFO L231 Difference]: Finished difference. Result has 83 places, 108 transitions, 964 flow [2024-01-31 17:00:48,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=964, PETRI_PLACES=83, PETRI_TRANSITIONS=108} [2024-01-31 17:00:48,671 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 54 predicate places. [2024-01-31 17:00:48,671 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 108 transitions, 964 flow [2024-01-31 17:00:48,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-01-31 17:00:48,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:00:48,672 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:00:48,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-31 17:00:48,672 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:00:48,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:00:48,673 INFO L85 PathProgramCache]: Analyzing trace with hash -452737283, now seen corresponding path program 4 times [2024-01-31 17:00:48,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:00:48,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205667105] [2024-01-31 17:00:48,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:00:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:00:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:00:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:00:48,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:00:48,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205667105] [2024-01-31 17:00:48,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205667105] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:00:48,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:00:48,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:00:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547571000] [2024-01-31 17:00:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:00:48,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:00:48,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:00:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:00:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:00:48,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-01-31 17:00:48,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 108 transitions, 964 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-01-31 17:00:48,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:00:48,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-01-31 17:00:48,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:00:48,858 INFO L124 PetriNetUnfolderBase]: 512/1111 cut-off events. [2024-01-31 17:00:48,859 INFO L125 PetriNetUnfolderBase]: For 6550/6577 co-relation queries the response was YES. [2024-01-31 17:00:48,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5014 conditions, 1111 events. 512/1111 cut-off events. For 6550/6577 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6090 event pairs, 142 based on Foata normal form. 96/1187 useless extension candidates. Maximal degree in co-relation 3317. Up to 453 conditions per place. [2024-01-31 17:00:48,863 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2024-01-31 17:00:48,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 102 transitions, 1087 flow [2024-01-31 17:00:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:00:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:00:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-01-31 17:00:48,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2024-01-31 17:00:48,864 INFO L175 Difference]: Start difference. First operand has 83 places, 108 transitions, 964 flow. Second operand 4 states and 70 transitions. [2024-01-31 17:00:48,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 102 transitions, 1087 flow [2024-01-31 17:00:48,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 102 transitions, 1040 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-01-31 17:00:48,873 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-01-31 17:00:48,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-01-31 17:00:48,874 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2024-01-31 17:00:48,874 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-01-31 17:00:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-01-31 17:00:48,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-01-31 17:00:48,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-01-31 17:00:48,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-01-31 17:00:48,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-31 17:00:48,877 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1] [2024-01-31 17:00:48,879 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 17:00:48,879 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 17:00:48,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 05:00:48 BasicIcfg [2024-01-31 17:00:48,882 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 17:00:48,883 INFO L158 Benchmark]: Toolchain (without parser) took 8154.36ms. Allocated memory was 140.5MB in the beginning and 413.1MB in the end (delta: 272.6MB). Free memory was 85.7MB in the beginning and 130.7MB in the end (delta: -45.0MB). Peak memory consumption was 229.2MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,883 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:00:48,883 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:00:48,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.65ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 140.5MB. Free memory was 72.6MB in the beginning and 71.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,884 INFO L158 Benchmark]: Boogie Preprocessor took 75.49ms. Allocated memory is still 140.5MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,884 INFO L158 Benchmark]: RCFGBuilder took 600.45ms. Allocated memory is still 140.5MB. Free memory was 69.0MB in the beginning and 106.8MB in the end (delta: -37.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,884 INFO L158 Benchmark]: TraceAbstraction took 7187.16ms. Allocated memory was 140.5MB in the beginning and 413.1MB in the end (delta: 272.6MB). Free memory was 106.1MB in the beginning and 130.7MB in the end (delta: -24.6MB). Peak memory consumption was 250.1MB. Max. memory is 16.1GB. [2024-01-31 17:00:48,885 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 0.17ms. Allocated memory is still 92.3MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.78ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.65ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 140.5MB. Free memory was 72.6MB in the beginning and 71.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.49ms. Allocated memory is still 140.5MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.45ms. Allocated memory is still 140.5MB. Free memory was 69.0MB in the beginning and 106.8MB in the end (delta: -37.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7187.16ms. Allocated memory was 140.5MB in the beginning and 413.1MB in the end (delta: 272.6MB). Free memory was 106.1MB in the beginning and 130.7MB in the end (delta: -24.6MB). Peak memory consumption was 250.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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, 42 locations, 3 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: 7.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 465 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 441 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 929 IncrementalHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 9 mSDtfsCounter, 929 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1077occurred in iteration=10, InterpolantAutomatonStates: 62, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 446 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 541 ConstructedInterpolants, 0 QuantifiedInterpolants, 2606 SizeOfPredicates, 13 NumberOfNonLiveVariables, 708 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 21 InterpolantComputations, 9 PerfectInterpolantSequences, 124/174 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 17:00:48,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE