./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 b845c43f9add53d9a19bb267a3e70a47c0f0bfd9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-04 19:29:53,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 19:29:53,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 19:29:53,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 19:29:53,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 19:29:53,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 19:29:53,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 19:29:53,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 19:29:53,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 19:29:53,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 19:29:53,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 19:29:53,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 19:29:53,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 19:29:53,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 19:29:53,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 19:29:53,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 19:29:53,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 19:29:53,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 19:29:53,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 19:29:53,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 19:29:53,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 19:29:53,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 19:29:53,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 19:29:53,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 19:29:53,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 19:29:53,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 19:29:53,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 19:29:53,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 19:29:53,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 19:29:53,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 19:29:53,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 19:29:53,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 19:29:53,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 19:29:53,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 19:29:53,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 19:29:53,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 19:29:53,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 19:29:53,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 19:29:53,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 19:29:53,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 19:29:53,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 19:29:53,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 19:29:53,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 19:29:53,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 19:29:53,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 19:29:53,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 19:29:53,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 19:29:53,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 19:29:53,275 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 19:29:53,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 19:29:53,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 19:29:53,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 19:29:53,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 19:29:53,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 19:29:53,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 19:29:53,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 19:29:53,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 19:29:53,278 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 19:29:53,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 19:29:53,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 19:29:53,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 19:29:53,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 19:29:53,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 19:29:53,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 19:29:53,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 19:29:53,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 19:29:53,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 19:29:53,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 19:29:53,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 19:29:53,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 19:29:53,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 19:29:53,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 19:29:53,282 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b845c43f9add53d9a19bb267a3e70a47c0f0bfd9 [2021-10-04 19:29:53,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 19:29:53,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 19:29:53,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 19:29:53,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 19:29:53,689 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 19:29:53,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c [2021-10-04 19:29:53,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8c760d63/60c8624f77a64b7887989bacb7edb935/FLAGe0cde8686 [2021-10-04 19:29:54,378 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 19:29:54,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c [2021-10-04 19:29:54,379 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 19:29:54,379 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 19:29:54,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8c760d63/60c8624f77a64b7887989bacb7edb935/FLAGe0cde8686 [2021-10-04 19:29:54,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8c760d63/60c8624f77a64b7887989bacb7edb935 [2021-10-04 19:29:54,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 19:29:54,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 19:29:54,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 19:29:54,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 19:29:54,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 19:29:54,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 07:29:54" (1/1) ... [2021-10-04 19:29:54,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dac652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:54, skipping insertion in model container [2021-10-04 19:29:54,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 07:29:54" (1/1) ... [2021-10-04 19:29:54,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 19:29:54,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 19:29:54,957 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 19:29:55,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c[2804,2817] [2021-10-04 19:29:55,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 19:29:55,056 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 19:29:55,066 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 19:29:55,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad/ring-nondet.wvr.c[2804,2817] [2021-10-04 19:29:55,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 19:29:55,112 INFO L208 MainTranslator]: Completed translation [2021-10-04 19:29:55,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55 WrapperNode [2021-10-04 19:29:55,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 19:29:55,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 19:29:55,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 19:29:55,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 19:29:55,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 19:29:55,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 19:29:55,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 19:29:55,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 19:29:55,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 19:29:55,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 19:29:55,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 19:29:55,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 19:29:55,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (1/1) ... [2021-10-04 19:29:55,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 19:29:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 19:29:55,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 19:29:55,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 19:29:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 19:29:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 19:29:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 19:29:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 19:29:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-04 19:29:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-04 19:29:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 19:29:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 19:29:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-04 19:29:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-04 19:29:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-04 19:29:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 19:29:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 19:29:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 19:29:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 19:29:55,375 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 19:29:56,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 19:29:56,400 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-04 19:29:56,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 07:29:56 BoogieIcfgContainer [2021-10-04 19:29:56,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 19:29:56,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 19:29:56,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 19:29:56,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 19:29:56,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 07:29:54" (1/3) ... [2021-10-04 19:29:56,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753b2acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 07:29:56, skipping insertion in model container [2021-10-04 19:29:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 07:29:55" (2/3) ... [2021-10-04 19:29:56,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753b2acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 07:29:56, skipping insertion in model container [2021-10-04 19:29:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 07:29:56" (3/3) ... [2021-10-04 19:29:56,415 INFO L111 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.c [2021-10-04 19:29:56,424 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 19:29:56,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 19:29:56,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 19:29:56,425 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 19:29:56,495 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,495 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,498 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,498 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,498 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,498 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,500 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,501 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,501 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,501 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,502 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,502 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,503 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,503 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,504 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,504 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,505 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,506 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,506 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,506 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,507 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,507 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,507 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,507 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,508 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,508 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,508 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,509 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,509 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,509 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,509 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,510 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,510 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,510 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,511 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,512 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,512 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,513 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,513 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,514 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,514 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,514 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,514 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,515 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,515 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,515 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,515 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,518 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,519 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,519 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,521 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,522 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,522 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,522 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,523 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,524 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,524 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,524 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,525 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,525 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,525 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,525 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,525 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,526 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,526 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,527 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,528 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,529 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,532 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,532 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,532 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,532 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,533 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,536 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,536 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,536 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,537 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,537 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,537 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,537 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,538 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,538 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,538 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,538 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,539 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,539 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,539 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,539 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,540 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,540 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,540 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,540 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,541 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,541 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,541 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,541 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,542 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,543 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,545 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,545 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,545 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,545 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,546 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,546 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,546 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,550 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,550 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,550 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,551 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,551 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,551 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,551 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,552 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,552 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,552 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,553 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,559 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,562 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~s~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,563 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,564 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 19:29:56,572 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-04 19:29:56,625 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 19:29:56,633 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-04 19:29:56,633 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-04 19:29:56,654 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 19:29:56,666 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 222 transitions, 468 flow [2021-10-04 19:29:56,669 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 222 transitions, 468 flow [2021-10-04 19:29:56,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 222 transitions, 468 flow [2021-10-04 19:29:56,799 INFO L129 PetriNetUnfolder]: 22/219 cut-off events. [2021-10-04 19:29:56,800 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-04 19:29:56,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 219 events. 22/219 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 171 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 185. Up to 4 conditions per place. [2021-10-04 19:29:56,811 INFO L116 LiptonReduction]: Number of co-enabled transitions 2406 [2021-10-04 19:30:05,396 INFO L131 LiptonReduction]: Checked pairs total: 3344 [2021-10-04 19:30:05,397 INFO L133 LiptonReduction]: Total number of compositions: 221 [2021-10-04 19:30:05,406 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 96 flow [2021-10-04 19:30:05,433 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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) [2021-10-04 19:30:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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) [2021-10-04 19:30:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 19:30:05,450 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:05,451 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 19:30:05,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash 199086587, now seen corresponding path program 1 times [2021-10-04 19:30:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:05,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379676750] [2021-10-04 19:30:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:05,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 19:30:05,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:05,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379676750] [2021-10-04 19:30:05,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379676750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:05,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:05,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-04 19:30:05,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63298952] [2021-10-04 19:30:05,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-04 19:30:05,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:05,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-04 19:30:05,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-04 19:30:05,765 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 3.5697674418604652) internal successors, (614), 172 states have internal predecessors, (614), 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) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-10-04 19:30:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:05,791 INFO L93 Difference]: Finished difference Result 173 states and 576 transitions. [2021-10-04 19:30:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-04 19:30:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) Word has length 22 [2021-10-04 19:30:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:05,813 INFO L225 Difference]: With dead ends: 173 [2021-10-04 19:30:05,814 INFO L226 Difference]: Without dead ends: 173 [2021-10-04 19:30:05,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-04 19:30:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-04 19:30:05,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-10-04 19:30:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 3.3488372093023258) internal successors, (576), 172 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) [2021-10-04 19:30:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 576 transitions. [2021-10-04 19:30:05,903 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 576 transitions. Word has length 22 [2021-10-04 19:30:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:05,905 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 576 transitions. [2021-10-04 19:30:05,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-10-04 19:30:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 576 transitions. [2021-10-04 19:30:05,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-04 19:30:05,909 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:05,909 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:05,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 19:30:05,910 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:05,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:05,911 INFO L82 PathProgramCache]: Analyzing trace with hash -578113455, now seen corresponding path program 1 times [2021-10-04 19:30:05,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:05,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321749007] [2021-10-04 19:30:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:05,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 19:30:06,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321749007] [2021-10-04 19:30:06,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321749007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 19:30:06,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984630335] [2021-10-04 19:30:06,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-04 19:30:06,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-04 19:30:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,030 INFO L87 Difference]: Start difference. First operand 173 states and 576 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-04 19:30:06,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,068 INFO L93 Difference]: Finished difference Result 219 states and 734 transitions. [2021-10-04 19:30:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-04 19:30:06,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2021-10-04 19:30:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,074 INFO L225 Difference]: With dead ends: 219 [2021-10-04 19:30:06,076 INFO L226 Difference]: Without dead ends: 219 [2021-10-04 19:30:06,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-04 19:30:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-04 19:30:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 3.36697247706422) internal successors, (734), 218 states have internal predecessors, (734), 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) [2021-10-04 19:30:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 734 transitions. [2021-10-04 19:30:06,107 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 734 transitions. Word has length 23 [2021-10-04 19:30:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,108 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 734 transitions. [2021-10-04 19:30:06,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-04 19:30:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 734 transitions. [2021-10-04 19:30:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-04 19:30:06,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,112 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 19:30:06,113 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,113 INFO L82 PathProgramCache]: Analyzing trace with hash 676168767, now seen corresponding path program 2 times [2021-10-04 19:30:06,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4730050] [2021-10-04 19:30:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 19:30:06,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4730050] [2021-10-04 19:30:06,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4730050] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 19:30:06,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241181083] [2021-10-04 19:30:06,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 19:30:06,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 19:30:06,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 19:30:06,258 INFO L87 Difference]: Start difference. First operand 219 states and 734 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-04 19:30:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,315 INFO L93 Difference]: Finished difference Result 251 states and 795 transitions. [2021-10-04 19:30:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-04 19:30:06,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2021-10-04 19:30:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,320 INFO L225 Difference]: With dead ends: 251 [2021-10-04 19:30:06,323 INFO L226 Difference]: Without dead ends: 220 [2021-10-04 19:30:06,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 19:30:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-04 19:30:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-10-04 19:30:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 3.356164383561644) internal successors, (735), 219 states have internal predecessors, (735), 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) [2021-10-04 19:30:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 735 transitions. [2021-10-04 19:30:06,353 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 735 transitions. Word has length 23 [2021-10-04 19:30:06,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,353 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 735 transitions. [2021-10-04 19:30:06,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-04 19:30:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 735 transitions. [2021-10-04 19:30:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-04 19:30:06,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,361 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-04 19:30:06,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1693887514, now seen corresponding path program 1 times [2021-10-04 19:30:06,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884551222] [2021-10-04 19:30:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-04 19:30:06,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884551222] [2021-10-04 19:30:06,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884551222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 19:30:06,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593242555] [2021-10-04 19:30:06,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 19:30:06,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 19:30:06,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 19:30:06,477 INFO L87 Difference]: Start difference. First operand 220 states and 735 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-10-04 19:30:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,530 INFO L93 Difference]: Finished difference Result 409 states and 1251 transitions. [2021-10-04 19:30:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 19:30:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) Word has length 24 [2021-10-04 19:30:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,534 INFO L225 Difference]: With dead ends: 409 [2021-10-04 19:30:06,534 INFO L226 Difference]: Without dead ends: 221 [2021-10-04 19:30:06,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 19:30:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-10-04 19:30:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2021-10-04 19:30:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 3.3454545454545452) internal successors, (736), 220 states have internal predecessors, (736), 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) [2021-10-04 19:30:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 736 transitions. [2021-10-04 19:30:06,547 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 736 transitions. Word has length 24 [2021-10-04 19:30:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,547 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 736 transitions. [2021-10-04 19:30:06,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-10-04 19:30:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 736 transitions. [2021-10-04 19:30:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-04 19:30:06,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,550 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-04 19:30:06,550 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1072429841, now seen corresponding path program 1 times [2021-10-04 19:30:06,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602332473] [2021-10-04 19:30:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-04 19:30:06,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602332473] [2021-10-04 19:30:06,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602332473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 19:30:06,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441898846] [2021-10-04 19:30:06,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 19:30:06,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 19:30:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 19:30:06,640 INFO L87 Difference]: Start difference. First operand 221 states and 736 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-04 19:30:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,679 INFO L93 Difference]: Finished difference Result 403 states and 1281 transitions. [2021-10-04 19:30:06,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-04 19:30:06,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) Word has length 25 [2021-10-04 19:30:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,682 INFO L225 Difference]: With dead ends: 403 [2021-10-04 19:30:06,683 INFO L226 Difference]: Without dead ends: 222 [2021-10-04 19:30:06,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 19:30:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-10-04 19:30:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-10-04 19:30:06,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 3.334841628959276) internal successors, (737), 221 states have internal predecessors, (737), 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) [2021-10-04 19:30:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 737 transitions. [2021-10-04 19:30:06,694 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 737 transitions. Word has length 25 [2021-10-04 19:30:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,695 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 737 transitions. [2021-10-04 19:30:06,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-04 19:30:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 737 transitions. [2021-10-04 19:30:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-04 19:30:06,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,697 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-04 19:30:06,697 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1006214615, now seen corresponding path program 1 times [2021-10-04 19:30:06,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166027895] [2021-10-04 19:30:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-04 19:30:06,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166027895] [2021-10-04 19:30:06,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166027895] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 19:30:06,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41441694] [2021-10-04 19:30:06,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-04 19:30:06,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-04 19:30:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,794 INFO L87 Difference]: Start difference. First operand 222 states and 737 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 19:30:06,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,808 INFO L93 Difference]: Finished difference Result 220 states and 722 transitions. [2021-10-04 19:30:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-04 19:30:06,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-04 19:30:06,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,811 INFO L225 Difference]: With dead ends: 220 [2021-10-04 19:30:06,812 INFO L226 Difference]: Without dead ends: 220 [2021-10-04 19:30:06,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-04 19:30:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-10-04 19:30:06,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 3.2968036529680367) internal successors, (722), 219 states have internal predecessors, (722), 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) [2021-10-04 19:30:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 722 transitions. [2021-10-04 19:30:06,823 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 722 transitions. Word has length 26 [2021-10-04 19:30:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,824 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 722 transitions. [2021-10-04 19:30:06,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 19:30:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 722 transitions. [2021-10-04 19:30:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-04 19:30:06,826 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,826 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-04 19:30:06,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,827 INFO L82 PathProgramCache]: Analyzing trace with hash 98707545, now seen corresponding path program 2 times [2021-10-04 19:30:06,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690952466] [2021-10-04 19:30:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:06,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-04 19:30:06,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:06,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690952466] [2021-10-04 19:30:06,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690952466] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:06,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:06,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-04 19:30:06,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957843706] [2021-10-04 19:30:06,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-04 19:30:06,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:06,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-04 19:30:06,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,937 INFO L87 Difference]: Start difference. First operand 220 states and 722 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 19:30:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:06,953 INFO L93 Difference]: Finished difference Result 417 states and 1398 transitions. [2021-10-04 19:30:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-04 19:30:06,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-04 19:30:06,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:06,958 INFO L225 Difference]: With dead ends: 417 [2021-10-04 19:30:06,959 INFO L226 Difference]: Without dead ends: 336 [2021-10-04 19:30:06,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-10-04 19:30:06,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 278. [2021-10-04 19:30:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 3.4620938628158844) internal successors, (959), 277 states have internal predecessors, (959), 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) [2021-10-04 19:30:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 959 transitions. [2021-10-04 19:30:06,978 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 959 transitions. Word has length 26 [2021-10-04 19:30:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:06,980 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 959 transitions. [2021-10-04 19:30:06,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 19:30:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 959 transitions. [2021-10-04 19:30:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-04 19:30:06,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:06,984 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:06,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-04 19:30:06,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:06,986 INFO L82 PathProgramCache]: Analyzing trace with hash -37348631, now seen corresponding path program 1 times [2021-10-04 19:30:06,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:06,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831736520] [2021-10-04 19:30:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:06,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-04 19:30:07,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:07,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831736520] [2021-10-04 19:30:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831736520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:07,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:07,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 19:30:07,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319743110] [2021-10-04 19:30:07,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-04 19:30:07,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-04 19:30:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:07,067 INFO L87 Difference]: Start difference. First operand 278 states and 959 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-04 19:30:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:07,088 INFO L93 Difference]: Finished difference Result 192 states and 611 transitions. [2021-10-04 19:30:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-04 19:30:07,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) Word has length 28 [2021-10-04 19:30:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:07,090 INFO L225 Difference]: With dead ends: 192 [2021-10-04 19:30:07,091 INFO L226 Difference]: Without dead ends: 178 [2021-10-04 19:30:07,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-04 19:30:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2021-10-04 19:30:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 3.2598870056497176) internal successors, (577), 177 states have internal predecessors, (577), 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) [2021-10-04 19:30:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 577 transitions. [2021-10-04 19:30:07,127 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 577 transitions. Word has length 28 [2021-10-04 19:30:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:07,127 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 577 transitions. [2021-10-04 19:30:07,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-04 19:30:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 577 transitions. [2021-10-04 19:30:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-04 19:30:07,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:07,129 INFO L512 BasicCegarLoop]: 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] [2021-10-04 19:30:07,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-04 19:30:07,130 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash -79000721, now seen corresponding path program 1 times [2021-10-04 19:30:07,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:07,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895523754] [2021-10-04 19:30:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:07,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-04 19:30:07,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:07,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895523754] [2021-10-04 19:30:07,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895523754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 19:30:07,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 19:30:07,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 19:30:07,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800593571] [2021-10-04 19:30:07,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-04 19:30:07,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-04 19:30:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:07,233 INFO L87 Difference]: Start difference. First operand 178 states and 577 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-04 19:30:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:07,250 INFO L93 Difference]: Finished difference Result 190 states and 631 transitions. [2021-10-04 19:30:07,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-04 19:30:07,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) Word has length 29 [2021-10-04 19:30:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:07,253 INFO L225 Difference]: With dead ends: 190 [2021-10-04 19:30:07,253 INFO L226 Difference]: Without dead ends: 190 [2021-10-04 19:30:07,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-04 19:30:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-04 19:30:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-10-04 19:30:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 3.3386243386243386) internal successors, (631), 189 states have internal predecessors, (631), 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) [2021-10-04 19:30:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 631 transitions. [2021-10-04 19:30:07,263 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 631 transitions. Word has length 29 [2021-10-04 19:30:07,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:07,264 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 631 transitions. [2021-10-04 19:30:07,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-04 19:30:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 631 transitions. [2021-10-04 19:30:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-04 19:30:07,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:07,267 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 19:30:07,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-04 19:30:07,267 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:07,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1232266521, now seen corresponding path program 2 times [2021-10-04 19:30:07,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:07,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208229841] [2021-10-04 19:30:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:07,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-04 19:30:07,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:07,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208229841] [2021-10-04 19:30:07,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208229841] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:07,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639111875] [2021-10-04 19:30:07,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-04 19:30:07,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-04 19:30:07,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 19:30:07,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-04 19:30:07,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-04 19:30:07,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-04 19:30:07,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-04 19:30:07,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-04 19:30:07,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-04 19:30:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-04 19:30:07,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639111875] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:07,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-04 19:30:07,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-04 19:30:07,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885179037] [2021-10-04 19:30:07,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 19:30:07,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 19:30:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 19:30:07,736 INFO L87 Difference]: Start difference. First operand 190 states and 631 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-04 19:30:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:07,872 INFO L93 Difference]: Finished difference Result 275 states and 914 transitions. [2021-10-04 19:30:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 19:30:07,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) Word has length 30 [2021-10-04 19:30:07,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:07,875 INFO L225 Difference]: With dead ends: 275 [2021-10-04 19:30:07,875 INFO L226 Difference]: Without dead ends: 135 [2021-10-04 19:30:07,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-04 19:30:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-04 19:30:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 128. [2021-10-04 19:30:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 2.8031496062992125) internal successors, (356), 127 states have internal predecessors, (356), 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) [2021-10-04 19:30:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 356 transitions. [2021-10-04 19:30:07,882 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 356 transitions. Word has length 30 [2021-10-04 19:30:07,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:07,882 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 356 transitions. [2021-10-04 19:30:07,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-04 19:30:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 356 transitions. [2021-10-04 19:30:07,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-04 19:30:07,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:07,884 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 19:30:07,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-04 19:30:08,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-04 19:30:08,099 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:08,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1393592789, now seen corresponding path program 3 times [2021-10-04 19:30:08,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:08,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316600406] [2021-10-04 19:30:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:08,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-04 19:30:08,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:08,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316600406] [2021-10-04 19:30:08,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316600406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:08,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914993928] [2021-10-04 19:30:08,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-04 19:30:08,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-04 19:30:08,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 19:30:08,266 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-04 19:30:08,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-04 19:30:08,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-04 19:30:08,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-04 19:30:08,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-04 19:30:08,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-04 19:30:08,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-10-04 19:30:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-04 19:30:08,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914993928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:08,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-04 19:30:08,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2021-10-04 19:30:08,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57490571] [2021-10-04 19:30:08,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-04 19:30:08,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:08,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-04 19:30:08,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-04 19:30:08,766 INFO L87 Difference]: Start difference. First operand 128 states and 356 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 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) [2021-10-04 19:30:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:09,144 INFO L93 Difference]: Finished difference Result 346 states and 940 transitions. [2021-10-04 19:30:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-04 19:30:09,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 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) Word has length 30 [2021-10-04 19:30:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:09,146 INFO L225 Difference]: With dead ends: 346 [2021-10-04 19:30:09,147 INFO L226 Difference]: Without dead ends: 116 [2021-10-04 19:30:09,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 208.8ms TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2021-10-04 19:30:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-04 19:30:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-04 19:30:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.8) internal successors, (322), 115 states have internal predecessors, (322), 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) [2021-10-04 19:30:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 322 transitions. [2021-10-04 19:30:09,153 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 322 transitions. Word has length 30 [2021-10-04 19:30:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:09,154 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 322 transitions. [2021-10-04 19:30:09,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 states have internal predecessors, (54), 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) [2021-10-04 19:30:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 322 transitions. [2021-10-04 19:30:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-04 19:30:09,156 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 19:30:09,156 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-10-04 19:30:09,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-04 19:30:09,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-04 19:30:09,370 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 19:30:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 19:30:09,371 INFO L82 PathProgramCache]: Analyzing trace with hash 874328498, now seen corresponding path program 4 times [2021-10-04 19:30:09,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 19:30:09,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594469626] [2021-10-04 19:30:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 19:30:09,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 19:30:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 19:30:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-04 19:30:09,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 19:30:09,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594469626] [2021-10-04 19:30:09,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594469626] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:09,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70718372] [2021-10-04 19:30:09,587 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-04 19:30:09,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-04 19:30:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 19:30:09,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-04 19:30:09,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-04 19:30:09,750 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-04 19:30:09,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-04 19:30:09,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-04 19:30:09,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-04 19:30:10,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2021-10-04 19:30:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-04 19:30:10,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70718372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-04 19:30:10,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-04 19:30:10,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2021-10-04 19:30:10,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45257135] [2021-10-04 19:30:10,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-04 19:30:10,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 19:30:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-04 19:30:10,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-04 19:30:10,114 INFO L87 Difference]: Start difference. First operand 116 states and 322 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 14 states have internal predecessors, (55), 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) [2021-10-04 19:30:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 19:30:10,432 INFO L93 Difference]: Finished difference Result 169 states and 465 transitions. [2021-10-04 19:30:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-04 19:30:10,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 14 states have internal predecessors, (55), 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) Word has length 31 [2021-10-04 19:30:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 19:30:10,432 INFO L225 Difference]: With dead ends: 169 [2021-10-04 19:30:10,433 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 19:30:10,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 271.2ms TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2021-10-04 19:30:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 19:30:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 19:30:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-04 19:30:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 19:30:10,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-04 19:30:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 19:30:10,434 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 19:30:10,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 14 states have internal predecessors, (55), 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) [2021-10-04 19:30:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 19:30:10,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 19:30:10,438 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 19:30:10,439 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 19:30:10,439 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 19:30:10,439 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-04 19:30:10,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-04 19:30:10,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-04 19:30:10,655 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 19:30:10,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 19:30:10,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 07:30:10 BasicIcfg [2021-10-04 19:30:10,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 19:30:10,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 19:30:10,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 19:30:10,658 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 19:30:10,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 07:29:56" (3/4) ... [2021-10-04 19:30:10,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 19:30:10,669 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 19:30:10,669 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 19:30:10,669 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-04 19:30:10,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-04 19:30:10,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-04 19:30:10,677 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 19:30:10,746 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 19:30:10,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 19:30:10,748 INFO L168 Benchmark]: Toolchain (without parser) took 15989.40 ms. Allocated memory was 58.7 MB in the beginning and 151.0 MB in the end (delta: 92.3 MB). Free memory was 34.5 MB in the beginning and 111.1 MB in the end (delta: -76.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,749 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 19:30:10,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.38 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 36.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.90 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 33.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,750 INFO L168 Benchmark]: Boogie Preprocessor took 77.95 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,751 INFO L168 Benchmark]: RCFGBuilder took 1151.21 ms. Allocated memory is still 58.7 MB. Free memory was 31.7 MB in the beginning and 27.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,751 INFO L168 Benchmark]: TraceAbstraction took 14250.95 ms. Allocated memory was 58.7 MB in the beginning and 151.0 MB in the end (delta: 92.3 MB). Free memory was 26.5 MB in the beginning and 116.1 MB in the end (delta: -89.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,753 INFO L168 Benchmark]: Witness Printer took 88.29 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 111.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-04 19:30:10,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.38 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 36.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.90 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 33.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.95 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1151.21 ms. Allocated memory is still 58.7 MB. Free memory was 31.7 MB in the beginning and 27.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14250.95 ms. Allocated memory was 58.7 MB in the beginning and 151.0 MB in the end (delta: 92.3 MB). Free memory was 26.5 MB in the beginning and 116.1 MB in the end (delta: -89.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Witness Printer took 88.29 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 111.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8727.4ms, 210 PlacesBefore, 38 PlacesAfterwards, 222 TransitionsBefore, 36 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 7 FixpointIterations, 136 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 9 ConcurrentYvCompositions, 14 ChoiceCompositions, 221 TotalNumberOfCompositions, 3344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2422, positive: 2336, positive conditional: 0, positive unconditional: 2336, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1632, positive: 1607, positive conditional: 0, positive unconditional: 1607, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1632, positive: 1601, positive conditional: 0, positive unconditional: 1601, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 186, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 145, negative conditional: 0, negative unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2422, positive: 729, positive conditional: 0, positive unconditional: 729, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 1632, unknown conditional: 0, unknown unconditional: 1632] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 123]: 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, 241 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 14032.3ms, OverallIterations: 12, TraceHistogramMax: 2, EmptinessCheckTime: 44.1ms, AutomataDifference: 1225.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8799.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 344 SDtfs, 426 SDslu, 450 SDs, 0 SdLazy, 532 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 541.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 540.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=7, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 238.7ms AutomataMinimizationTime, 12 MinimizatonAttempts, 65 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 129.9ms SsaConstructionTime, 674.1ms SatisfiabilityAnalysisTime, 1736.0ms InterpolantComputationTime, 408 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 393 ConstructedInterpolants, 0 QuantifiedInterpolants, 1389 SizeOfPredicates, 30 NumberOfNonLiveVariables, 950 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 60/77 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! [2021-10-04 19:30:10,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...