./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/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/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:00:05,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:00:05,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:00:05,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:00:05,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:00:05,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:00:05,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:00:05,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:00:05,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:00:05,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:00:05,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:00:05,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:00:05,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:00:05,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:00:05,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:00:05,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:00:05,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:00:05,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:00:05,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:00:05,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:00:05,216 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:00:05,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:00:05,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:00:05,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:00:05,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:00:05,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:00:05,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:00:05,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:00:05,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:00:05,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:00:05,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:00:05,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:00:05,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:00:05,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:00:05,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:00:05,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:00:05,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:00:05,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:00:05,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:00:05,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:00:05,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:00:05,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:00:05,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 09:00:05,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:00:05,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:00:05,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:00:05,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:00:05,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:00:05,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:00:05,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:00:05,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:00:05,279 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:00:05,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:00:05,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 09:00:05,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:00:05,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 09:00:05,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:00:05,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:00:05,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:00:05,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:00:05,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 09:00:05,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:00:05,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:00:05,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:00:05,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:00:05,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:00:05,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:00:05,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:00:05,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:00:05,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:00:05,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:00:05,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:00:05,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:00:05,285 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:00:05,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:00:05,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:00:05,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 [2022-07-21 09:00:05,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:00:05,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:00:05,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:00:05,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:00:05,609 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:00:05,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2022-07-21 09:00:05,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b350d84a/372fb03200964ba68759051715a8e730/FLAG7cdd44a09 [2022-07-21 09:00:06,097 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:00:06,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2022-07-21 09:00:06,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b350d84a/372fb03200964ba68759051715a8e730/FLAG7cdd44a09 [2022-07-21 09:00:06,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b350d84a/372fb03200964ba68759051715a8e730 [2022-07-21 09:00:06,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:00:06,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:00:06,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:00:06,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:00:06,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:00:06,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d398b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06, skipping insertion in model container [2022-07-21 09:00:06,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:00:06,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:00:06,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2879,2892] [2022-07-21 09:00:06,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:00:06,684 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:00:06,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2879,2892] [2022-07-21 09:00:06,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:00:06,765 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:00:06,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06 WrapperNode [2022-07-21 09:00:06,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:00:06,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:00:06,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:00:06,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:00:06,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,803 INFO L137 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 214 [2022-07-21 09:00:06,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:00:06,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:00:06,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:00:06,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:00:06,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:00:06,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:00:06,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:00:06,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:00:06,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (1/1) ... [2022-07-21 09:00:06,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:00:06,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:00:06,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 09:00:06,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 09:00:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:00:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:00:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:00:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:00:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:00:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 09:00:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 09:00:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:00:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:00:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:00:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 09:00:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 09:00:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:00:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:00:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:00:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:00:06,913 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:00:07,059 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:00:07,061 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:00:07,452 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:00:07,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:00:07,781 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:00:07,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:00:07 BoogieIcfgContainer [2022-07-21 09:00:07,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:00:07,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:00:07,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:00:07,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:00:07,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:00:06" (1/3) ... [2022-07-21 09:00:07,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d392ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:00:07, skipping insertion in model container [2022-07-21 09:00:07,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:00:06" (2/3) ... [2022-07-21 09:00:07,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d392ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:00:07, skipping insertion in model container [2022-07-21 09:00:07,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:00:07" (3/3) ... [2022-07-21 09:00:07,796 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2022-07-21 09:00:07,802 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:00:07,810 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:00:07,811 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:00:07,811 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:00:07,875 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 09:00:07,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 110 transitions, 244 flow [2022-07-21 09:00:07,968 INFO L129 PetriNetUnfolder]: 1/107 cut-off events. [2022-07-21 09:00:07,969 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:00:07,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 1/107 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-07-21 09:00:07,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 110 transitions, 244 flow [2022-07-21 09:00:07,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 96 transitions, 210 flow [2022-07-21 09:00:07,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:00:07,994 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d407234, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b3a9263 [2022-07-21 09:00:07,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 09:00:08,021 INFO L129 PetriNetUnfolder]: 1/95 cut-off events. [2022-07-21 09:00:08,021 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:00:08,021 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:08,022 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:08,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash 428084254, now seen corresponding path program 1 times [2022-07-21 09:00:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:08,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541106242] [2022-07-21 09:00:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:09,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:09,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541106242] [2022-07-21 09:00:09,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541106242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:09,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:09,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:09,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239634458] [2022-07-21 09:00:09,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:09,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:09,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:09,298 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:09,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:09,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:09,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:09,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:10,220 INFO L129 PetriNetUnfolder]: 14/186 cut-off events. [2022-07-21 09:00:10,221 INFO L130 PetriNetUnfolder]: For 55/61 co-relation queries the response was YES. [2022-07-21 09:00:10,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 186 events. 14/186 cut-off events. For 55/61 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 421 event pairs, 7 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 129. Up to 39 conditions per place. [2022-07-21 09:00:10,224 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 40 selfloop transitions, 2 changer transitions 10/115 dead transitions. [2022-07-21 09:00:10,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 115 transitions, 376 flow [2022-07-21 09:00:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:00:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-21 09:00:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 740 transitions. [2022-07-21 09:00:10,246 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7474747474747475 [2022-07-21 09:00:10,250 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 740 transitions. [2022-07-21 09:00:10,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 740 transitions. [2022-07-21 09:00:10,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:10,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 740 transitions. [2022-07-21 09:00:10,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.22222222222223) internal successors, (740), 9 states have internal predecessors, (740), 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) [2022-07-21 09:00:10,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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) [2022-07-21 09:00:10,273 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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) [2022-07-21 09:00:10,275 INFO L186 Difference]: Start difference. First operand has 105 places, 96 transitions, 210 flow. Second operand 9 states and 740 transitions. [2022-07-21 09:00:10,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 115 transitions, 376 flow [2022-07-21 09:00:10,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 115 transitions, 348 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 09:00:10,288 INFO L242 Difference]: Finished difference. Result has 112 places, 95 transitions, 213 flow [2022-07-21 09:00:10,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=213, PETRI_PLACES=112, PETRI_TRANSITIONS=95} [2022-07-21 09:00:10,296 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2022-07-21 09:00:10,296 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 213 flow [2022-07-21 09:00:10,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:10,297 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:10,297 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:10,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:00:10,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:10,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:10,300 INFO L85 PathProgramCache]: Analyzing trace with hash -397063098, now seen corresponding path program 2 times [2022-07-21 09:00:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:10,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853307175] [2022-07-21 09:00:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:10,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:10,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853307175] [2022-07-21 09:00:10,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853307175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:10,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:10,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:10,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153053351] [2022-07-21 09:00:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:10,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:10,835 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:10,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 95 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:10,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:10,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:10,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:11,272 INFO L129 PetriNetUnfolder]: 13/212 cut-off events. [2022-07-21 09:00:11,272 INFO L130 PetriNetUnfolder]: For 60/68 co-relation queries the response was YES. [2022-07-21 09:00:11,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 212 events. 13/212 cut-off events. For 60/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 644 event pairs, 5 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 328. Up to 34 conditions per place. [2022-07-21 09:00:11,276 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 40 selfloop transitions, 3 changer transitions 8/114 dead transitions. [2022-07-21 09:00:11,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 380 flow [2022-07-21 09:00:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:00:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:00:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2022-07-21 09:00:11,281 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2022-07-21 09:00:11,281 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2022-07-21 09:00:11,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2022-07-21 09:00:11,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:11,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2022-07-21 09:00:11,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 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) [2022-07-21 09:00:11,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:11,286 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:11,286 INFO L186 Difference]: Start difference. First operand has 112 places, 95 transitions, 213 flow. Second operand 7 states and 583 transitions. [2022-07-21 09:00:11,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 380 flow [2022-07-21 09:00:11,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 114 transitions, 361 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-07-21 09:00:11,290 INFO L242 Difference]: Finished difference. Result has 113 places, 96 transitions, 230 flow [2022-07-21 09:00:11,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=230, PETRI_PLACES=113, PETRI_TRANSITIONS=96} [2022-07-21 09:00:11,292 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2022-07-21 09:00:11,292 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 96 transitions, 230 flow [2022-07-21 09:00:11,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:11,293 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:11,293 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:11,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:00:11,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:11,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:11,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1754643884, now seen corresponding path program 3 times [2022-07-21 09:00:11,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:11,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569568891] [2022-07-21 09:00:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:11,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:11,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:11,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569568891] [2022-07-21 09:00:11,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569568891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:11,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:11,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:11,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491060242] [2022-07-21 09:00:11,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:11,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:11,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:11,636 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:11,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 96 transitions, 230 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:11,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:11,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:11,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:12,020 INFO L129 PetriNetUnfolder]: 11/194 cut-off events. [2022-07-21 09:00:12,020 INFO L130 PetriNetUnfolder]: For 93/99 co-relation queries the response was YES. [2022-07-21 09:00:12,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 194 events. 11/194 cut-off events. For 93/99 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 511 event pairs, 3 based on Foata normal form. 2/192 useless extension candidates. Maximal degree in co-relation 326. Up to 34 conditions per place. [2022-07-21 09:00:12,022 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 40 selfloop transitions, 3 changer transitions 10/116 dead transitions. [2022-07-21 09:00:12,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 116 transitions, 415 flow [2022-07-21 09:00:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:00:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:00:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2022-07-21 09:00:12,025 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2022-07-21 09:00:12,025 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2022-07-21 09:00:12,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2022-07-21 09:00:12,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:12,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2022-07-21 09:00:12,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 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) [2022-07-21 09:00:12,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:12,029 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:12,029 INFO L186 Difference]: Start difference. First operand has 113 places, 96 transitions, 230 flow. Second operand 7 states and 583 transitions. [2022-07-21 09:00:12,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 116 transitions, 415 flow [2022-07-21 09:00:12,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 116 transitions, 393 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-07-21 09:00:12,034 INFO L242 Difference]: Finished difference. Result has 117 places, 96 transitions, 240 flow [2022-07-21 09:00:12,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=117, PETRI_TRANSITIONS=96} [2022-07-21 09:00:12,035 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-07-21 09:00:12,035 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 96 transitions, 240 flow [2022-07-21 09:00:12,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:12,036 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:12,036 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:12,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:00:12,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:12,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1077336608, now seen corresponding path program 4 times [2022-07-21 09:00:12,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:12,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815554315] [2022-07-21 09:00:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:12,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815554315] [2022-07-21 09:00:12,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815554315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:12,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:12,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979386081] [2022-07-21 09:00:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:12,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:12,436 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:12,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 96 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:12,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:12,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:12,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:12,859 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2022-07-21 09:00:12,859 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-07-21 09:00:12,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 157 events. 8/157 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 276 event pairs, 4 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 274. Up to 28 conditions per place. [2022-07-21 09:00:12,860 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 30 selfloop transitions, 1 changer transitions 13/107 dead transitions. [2022-07-21 09:00:12,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 107 transitions, 375 flow [2022-07-21 09:00:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:00:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:00:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 576 transitions. [2022-07-21 09:00:12,865 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7480519480519481 [2022-07-21 09:00:12,865 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 576 transitions. [2022-07-21 09:00:12,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 576 transitions. [2022-07-21 09:00:12,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:12,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 576 transitions. [2022-07-21 09:00:12,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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) [2022-07-21 09:00:12,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:12,870 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:12,870 INFO L186 Difference]: Start difference. First operand has 117 places, 96 transitions, 240 flow. Second operand 7 states and 576 transitions. [2022-07-21 09:00:12,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 107 transitions, 375 flow [2022-07-21 09:00:12,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 107 transitions, 352 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-07-21 09:00:12,874 INFO L242 Difference]: Finished difference. Result has 118 places, 94 transitions, 221 flow [2022-07-21 09:00:12,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=118, PETRI_TRANSITIONS=94} [2022-07-21 09:00:12,875 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2022-07-21 09:00:12,875 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 94 transitions, 221 flow [2022-07-21 09:00:12,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:12,876 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:12,876 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:12,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:00:12,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1556560054, now seen corresponding path program 5 times [2022-07-21 09:00:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:12,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34330780] [2022-07-21 09:00:12,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:13,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:13,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34330780] [2022-07-21 09:00:13,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34330780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:13,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:13,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:13,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531707447] [2022-07-21 09:00:13,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:13,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:13,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:13,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:13,259 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:13,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 94 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:13,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:13,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:13,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:13,680 INFO L129 PetriNetUnfolder]: 1/119 cut-off events. [2022-07-21 09:00:13,681 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-07-21 09:00:13,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 119 events. 1/119 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 104 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 189. Up to 23 conditions per place. [2022-07-21 09:00:13,682 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 30 selfloop transitions, 1 changer transitions 9/103 dead transitions. [2022-07-21 09:00:13,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 103 transitions, 344 flow [2022-07-21 09:00:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:00:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:00:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2022-07-21 09:00:13,684 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7441558441558441 [2022-07-21 09:00:13,685 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2022-07-21 09:00:13,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2022-07-21 09:00:13,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:13,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2022-07-21 09:00:13,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 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) [2022-07-21 09:00:13,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:13,689 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:13,689 INFO L186 Difference]: Start difference. First operand has 118 places, 94 transitions, 221 flow. Second operand 7 states and 573 transitions. [2022-07-21 09:00:13,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 103 transitions, 344 flow [2022-07-21 09:00:13,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 103 transitions, 308 flow, removed 10 selfloop flow, removed 10 redundant places. [2022-07-21 09:00:13,695 INFO L242 Difference]: Finished difference. Result has 114 places, 94 transitions, 213 flow [2022-07-21 09:00:13,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=213, PETRI_PLACES=114, PETRI_TRANSITIONS=94} [2022-07-21 09:00:13,698 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2022-07-21 09:00:13,698 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 94 transitions, 213 flow [2022-07-21 09:00:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:13,699 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:13,699 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:13,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:00:13,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1695119368, now seen corresponding path program 6 times [2022-07-21 09:00:13,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:13,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342898406] [2022-07-21 09:00:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:13,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:14,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342898406] [2022-07-21 09:00:14,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342898406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:14,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:14,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293928595] [2022-07-21 09:00:14,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:14,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:14,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:14,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:14,489 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2022-07-21 09:00:14,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 94 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:14,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:14,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2022-07-21 09:00:14,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:14,940 INFO L129 PetriNetUnfolder]: 1/98 cut-off events. [2022-07-21 09:00:14,940 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-07-21 09:00:14,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 98 events. 1/98 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 1 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 149. Up to 25 conditions per place. [2022-07-21 09:00:14,941 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2022-07-21 09:00:14,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 92 transitions, 273 flow [2022-07-21 09:00:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:00:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:00:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 564 transitions. [2022-07-21 09:00:14,942 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7324675324675325 [2022-07-21 09:00:14,942 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 564 transitions. [2022-07-21 09:00:14,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 564 transitions. [2022-07-21 09:00:14,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:14,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 564 transitions. [2022-07-21 09:00:14,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2022-07-21 09:00:14,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:14,946 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2022-07-21 09:00:14,946 INFO L186 Difference]: Start difference. First operand has 114 places, 94 transitions, 213 flow. Second operand 7 states and 564 transitions. [2022-07-21 09:00:14,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 92 transitions, 273 flow [2022-07-21 09:00:14,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 92 transitions, 265 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-07-21 09:00:14,948 INFO L242 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2022-07-21 09:00:14,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2022-07-21 09:00:14,948 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2022-07-21 09:00:14,948 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2022-07-21 09:00:14,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2022-07-21 09:00:14,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-21 09:00:14,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-21 09:00:14,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-21 09:00:14,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-07-21 09:00:14,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 09:00:14,952 INFO L356 BasicCegarLoop]: Path program histogram: [6] [2022-07-21 09:00:14,955 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 09:00:14,955 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 09:00:14,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:00:14 BasicIcfg [2022-07-21 09:00:14,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 09:00:14,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 09:00:14,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 09:00:14,960 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 09:00:14,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:00:07" (3/4) ... [2022-07-21 09:00:14,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 09:00:14,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-21 09:00:14,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-21 09:00:14,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-07-21 09:00:14,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-21 09:00:14,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 09:00:14,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 09:00:14,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 09:00:15,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 09:00:15,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 09:00:15,007 INFO L158 Benchmark]: Toolchain (without parser) took 8516.73ms. Allocated memory was 52.4MB in the beginning and 155.2MB in the end (delta: 102.8MB). Free memory was 29.4MB in the beginning and 105.2MB in the end (delta: -75.8MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,008 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:00:15,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.75ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.2MB in the beginning and 51.7MB in the end (delta: -22.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.21ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 49.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,008 INFO L158 Benchmark]: Boogie Preprocessor took 23.56ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:00:15,009 INFO L158 Benchmark]: RCFGBuilder took 956.59ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 34.0MB in the end (delta: 13.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,009 INFO L158 Benchmark]: TraceAbstraction took 7173.49ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 33.6MB in the beginning and 108.3MB in the end (delta: -74.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,009 INFO L158 Benchmark]: Witness Printer took 46.56ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 105.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:00:15,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.75ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.2MB in the beginning and 51.7MB in the end (delta: -22.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.21ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 49.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.56ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 956.59ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 34.0MB in the end (delta: 13.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7173.49ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 33.6MB in the beginning and 108.3MB in the end (delta: -74.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 46.56ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 105.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 125 locations, 4 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: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 558 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 691 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 724 IncrementalHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 136 mSDtfsCounter, 724 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 6859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 09:00:15,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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