./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/node-subst.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/chl/node-subst.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 18eec0562fa1cf4ec7b831183de47c98d1363233 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-03 11:57:19,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 11:57:19,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 11:57:19,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 11:57:19,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 11:57:19,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 11:57:19,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 11:57:19,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 11:57:19,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 11:57:19,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 11:57:19,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 11:57:19,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 11:57:19,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 11:57:19,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 11:57:19,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 11:57:19,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 11:57:19,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 11:57:19,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 11:57:19,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 11:57:19,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 11:57:19,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 11:57:19,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 11:57:19,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 11:57:19,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 11:57:19,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 11:57:19,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 11:57:19,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 11:57:19,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 11:57:19,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 11:57:19,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 11:57:19,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 11:57:19,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 11:57:19,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 11:57:19,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 11:57:19,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 11:57:19,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 11:57:19,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 11:57:19,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 11:57:19,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 11:57:19,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 11:57:19,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 11:57:19,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-03 11:57:19,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 11:57:19,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 11:57:19,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 11:57:19,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 11:57:19,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 11:57:19,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 11:57:19,525 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 11:57:19,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 11:57:19,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 11:57:19,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 11:57:19,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 11:57:19,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 11:57:19,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 11:57:19,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 11:57:19,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 11:57:19,527 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 11:57:19,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 11:57:19,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 11:57:19,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 11:57:19,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 11:57:19,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 11:57:19,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 11:57:19,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:57:19,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 11:57:19,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 11:57:19,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 11:57:19,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 11:57:19,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 11:57:19,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 11:57:19,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 11:57:19,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18eec0562fa1cf4ec7b831183de47c98d1363233 [2021-10-03 11:57:19,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 11:57:19,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 11:57:19,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 11:57:19,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 11:57:19,967 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 11:57:19,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/node-subst.wvr.c [2021-10-03 11:57:20,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dfb39917/815f9145d9fb4110a1bc1db1ff1f65d4/FLAGd605287fe [2021-10-03 11:57:20,723 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 11:57:20,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/node-subst.wvr.c [2021-10-03 11:57:20,724 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:20,724 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:20,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dfb39917/815f9145d9fb4110a1bc1db1ff1f65d4/FLAGd605287fe [2021-10-03 11:57:21,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dfb39917/815f9145d9fb4110a1bc1db1ff1f65d4 [2021-10-03 11:57:21,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 11:57:21,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 11:57:21,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:21,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 11:57:21,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 11:57:21,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216bfdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21, skipping insertion in model container [2021-10-03 11:57:21,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 11:57:21,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 11:57:21,215 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:21,287 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/chl/node-subst.wvr.c[2817,2830] [2021-10-03 11:57:21,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:21,326 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 11:57:21,338 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:21,363 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/chl/node-subst.wvr.c[2817,2830] [2021-10-03 11:57:21,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:21,385 INFO L208 MainTranslator]: Completed translation [2021-10-03 11:57:21,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21 WrapperNode [2021-10-03 11:57:21,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:21,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:21,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 11:57:21,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 11:57:21,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:21,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 11:57:21,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 11:57:21,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 11:57:21,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 11:57:21,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 11:57:21,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 11:57:21,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 11:57:21,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (1/1) ... [2021-10-03 11:57:21,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:57:21,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 11:57:21,561 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) [2021-10-03 11:57:21,585 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 [2021-10-03 11:57:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 11:57:21,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 11:57:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 11:57:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 11:57:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-03 11:57:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-03 11:57:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 11:57:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 11:57:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-03 11:57:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-03 11:57:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-03 11:57:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 11:57:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 11:57:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 11:57:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 11:57:21,639 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-03 11:57:22,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 11:57:22,918 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-10-03 11:57:22,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:22 BoogieIcfgContainer [2021-10-03 11:57:22,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 11:57:22,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 11:57:22,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 11:57:22,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 11:57:22,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 11:57:21" (1/3) ... [2021-10-03 11:57:22,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24234e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:22, skipping insertion in model container [2021-10-03 11:57:22,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:21" (2/3) ... [2021-10-03 11:57:22,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24234e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:22, skipping insertion in model container [2021-10-03 11:57:22,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:22" (3/3) ... [2021-10-03 11:57:22,930 INFO L111 eAbstractionObserver]: Analyzing ICFG node-subst.wvr.c [2021-10-03 11:57:22,937 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 11:57:22,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 11:57:22,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 11:57:22,937 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 11:57:22,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,996 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,997 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,997 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,997 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,997 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:22,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,004 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,004 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,004 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,008 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,008 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,014 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,014 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,014 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,015 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,017 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,017 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,017 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,018 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,020 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,023 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,023 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,023 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,023 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,025 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,034 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,034 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,035 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,035 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,041 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,051 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,051 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,051 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,052 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,053 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,053 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,053 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,053 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:23,060 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-03 11:57:23,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 11:57:23,130 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 [2021-10-03 11:57:23,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-03 11:57:23,165 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 11:57:23,184 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 274 transitions, 572 flow [2021-10-03 11:57:23,187 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 274 transitions, 572 flow [2021-10-03 11:57:23,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 265 places, 274 transitions, 572 flow [2021-10-03 11:57:23,336 INFO L129 PetriNetUnfolder]: 19/271 cut-off events. [2021-10-03 11:57:23,336 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-03 11:57:23,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 271 events. 19/271 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 107 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 245. Up to 2 conditions per place. [2021-10-03 11:57:23,355 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-10-03 11:57:37,011 INFO L131 LiptonReduction]: Checked pairs total: 595 [2021-10-03 11:57:37,011 INFO L133 LiptonReduction]: Total number of compositions: 275 [2021-10-03 11:57:37,021 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 32 transitions, 88 flow [2021-10-03 11:57:37,035 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 49 states have internal predecessors, (92), 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) [2021-10-03 11:57:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 49 states have internal predecessors, (92), 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) [2021-10-03 11:57:37,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:37,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:37,044 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] [2021-10-03 11:57:37,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:37,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1559194936, now seen corresponding path program 1 times [2021-10-03 11:57:37,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:37,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545437638] [2021-10-03 11:57:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:37,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:38,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:38,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545437638] [2021-10-03 11:57:38,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545437638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:38,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:38,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-03 11:57:38,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685427827] [2021-10-03 11:57:38,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-03 11:57:38,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-03 11:57:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-03 11:57:38,944 INFO L87 Difference]: Start difference. First operand has 50 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 49 states have internal predecessors, (92), 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 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-03 11:57:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:39,545 INFO L93 Difference]: Finished difference Result 111 states and 175 transitions. [2021-10-03 11:57:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 11:57:39,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2021-10-03 11:57:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:39,557 INFO L225 Difference]: With dead ends: 111 [2021-10-03 11:57:39,557 INFO L226 Difference]: Without dead ends: 82 [2021-10-03 11:57:39,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 495.0ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-03 11:57:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-03 11:57:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 55. [2021-10-03 11:57:39,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 54 states have internal predecessors, (99), 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) [2021-10-03 11:57:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2021-10-03 11:57:39,596 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 22 [2021-10-03 11:57:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:39,596 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2021-10-03 11:57:39,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-03 11:57:39,597 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2021-10-03 11:57:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:39,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:39,598 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] [2021-10-03 11:57:39,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 11:57:39,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash -2063171042, now seen corresponding path program 2 times [2021-10-03 11:57:39,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:39,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302925982] [2021-10-03 11:57:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:39,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:41,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:41,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302925982] [2021-10-03 11:57:41,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302925982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:41,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:41,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-03 11:57:41,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537728000] [2021-10-03 11:57:41,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:57:41,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:57:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:57:41,465 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2021-10-03 11:57:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:41,953 INFO L93 Difference]: Finished difference Result 74 states and 119 transitions. [2021-10-03 11:57:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 [2021-10-03 11:57:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:41,956 INFO L225 Difference]: With dead ends: 74 [2021-10-03 11:57:41,956 INFO L226 Difference]: Without dead ends: 58 [2021-10-03 11:57:41,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 408.5ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-03 11:57:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-03 11:57:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2021-10-03 11:57:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.7142857142857142) internal successors, (84), 49 states have internal predecessors, (84), 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) [2021-10-03 11:57:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 84 transitions. [2021-10-03 11:57:41,966 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 84 transitions. Word has length 22 [2021-10-03 11:57:41,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:41,969 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 84 transitions. [2021-10-03 11:57:41,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2021-10-03 11:57:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 84 transitions. [2021-10-03 11:57:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:41,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:41,971 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] [2021-10-03 11:57:41,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 11:57:41,971 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1553626692, now seen corresponding path program 3 times [2021-10-03 11:57:41,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:41,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733934179] [2021-10-03 11:57:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:41,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:42,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:42,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:42,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733934179] [2021-10-03 11:57:42,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733934179] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:42,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:42,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-03 11:57:42,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507227056] [2021-10-03 11:57:42,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:57:42,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:57:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:57:42,815 INFO L87 Difference]: Start difference. First operand 50 states and 84 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2021-10-03 11:57:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:43,379 INFO L93 Difference]: Finished difference Result 72 states and 109 transitions. [2021-10-03 11:57:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 [2021-10-03 11:57:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:43,384 INFO L225 Difference]: With dead ends: 72 [2021-10-03 11:57:43,384 INFO L226 Difference]: Without dead ends: 50 [2021-10-03 11:57:43,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 510.2ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-03 11:57:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-03 11:57:43,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-10-03 11:57:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.6829268292682926) internal successors, (69), 41 states have internal predecessors, (69), 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) [2021-10-03 11:57:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2021-10-03 11:57:43,399 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 22 [2021-10-03 11:57:43,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:43,400 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2021-10-03 11:57:43,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2021-10-03 11:57:43,401 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2021-10-03 11:57:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:43,402 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:43,403 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] [2021-10-03 11:57:43,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-03 11:57:43,404 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:43,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1494094734, now seen corresponding path program 4 times [2021-10-03 11:57:43,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:43,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946461803] [2021-10-03 11:57:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:43,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:44,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:44,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946461803] [2021-10-03 11:57:44,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946461803] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:44,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:44,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:57:44,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404907618] [2021-10-03 11:57:44,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-03 11:57:44,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:44,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-03 11:57:44,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-03 11:57:44,745 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:45,069 INFO L93 Difference]: Finished difference Result 59 states and 85 transitions. [2021-10-03 11:57:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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 [2021-10-03 11:57:45,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:45,071 INFO L225 Difference]: With dead ends: 59 [2021-10-03 11:57:45,071 INFO L226 Difference]: Without dead ends: 50 [2021-10-03 11:57:45,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 296.1ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-03 11:57:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-03 11:57:45,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-10-03 11:57:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 41 states have internal predecessors, (67), 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) [2021-10-03 11:57:45,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 67 transitions. [2021-10-03 11:57:45,077 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 67 transitions. Word has length 22 [2021-10-03 11:57:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:45,077 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 67 transitions. [2021-10-03 11:57:45,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:45,078 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2021-10-03 11:57:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:45,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:45,079 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] [2021-10-03 11:57:45,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-03 11:57:45,079 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:45,080 INFO L82 PathProgramCache]: Analyzing trace with hash 581769508, now seen corresponding path program 5 times [2021-10-03 11:57:45,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:45,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309692812] [2021-10-03 11:57:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:45,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:45,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:45,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309692812] [2021-10-03 11:57:45,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309692812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:45,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:45,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:57:45,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723138293] [2021-10-03 11:57:45,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-03 11:57:45,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-03 11:57:45,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-03 11:57:45,776 INFO L87 Difference]: Start difference. First operand 42 states and 67 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:46,146 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-03 11:57:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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 [2021-10-03 11:57:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:46,148 INFO L225 Difference]: With dead ends: 64 [2021-10-03 11:57:46,148 INFO L226 Difference]: Without dead ends: 47 [2021-10-03 11:57:46,149 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 370.9ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-03 11:57:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-03 11:57:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2021-10-03 11:57:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 38 states have internal predecessors, (58), 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) [2021-10-03 11:57:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 58 transitions. [2021-10-03 11:57:46,154 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 58 transitions. Word has length 22 [2021-10-03 11:57:46,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:46,154 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 58 transitions. [2021-10-03 11:57:46,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-10-03 11:57:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:46,156 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:46,156 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] [2021-10-03 11:57:46,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-03 11:57:46,157 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:46,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:46,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1601535688, now seen corresponding path program 6 times [2021-10-03 11:57:46,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:46,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986253082] [2021-10-03 11:57:46,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:46,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:46,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:46,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986253082] [2021-10-03 11:57:46,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986253082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:46,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:46,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:57:46,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936457122] [2021-10-03 11:57:46,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-03 11:57:46,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-03 11:57:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-03 11:57:46,897 INFO L87 Difference]: Start difference. First operand 39 states and 58 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:47,399 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2021-10-03 11:57:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-03 11:57:47,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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 [2021-10-03 11:57:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:47,401 INFO L225 Difference]: With dead ends: 54 [2021-10-03 11:57:47,401 INFO L226 Difference]: Without dead ends: 38 [2021-10-03 11:57:47,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 535.3ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-03 11:57:47,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-03 11:57:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2021-10-03 11:57:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 29 states have internal predecessors, (43), 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) [2021-10-03 11:57:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2021-10-03 11:57:47,405 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 43 transitions. Word has length 22 [2021-10-03 11:57:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:47,406 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 43 transitions. [2021-10-03 11:57:47,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2021-10-03 11:57:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-10-03 11:57:47,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:47,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:47,407 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] [2021-10-03 11:57:47,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-03 11:57:47,408 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:47,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1697392264, now seen corresponding path program 7 times [2021-10-03 11:57:47,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:47,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961591632] [2021-10-03 11:57:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:47,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:50,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:50,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961591632] [2021-10-03 11:57:50,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961591632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:50,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:50,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:50,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100261609] [2021-10-03 11:57:50,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:50,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:50,439 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-10-03 11:57:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:50,716 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-10-03 11:57:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:57:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 [2021-10-03 11:57:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:50,717 INFO L225 Difference]: With dead ends: 37 [2021-10-03 11:57:50,718 INFO L226 Difference]: Without dead ends: 28 [2021-10-03 11:57:50,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 299.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-03 11:57:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-03 11:57:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-03 11:57:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 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) [2021-10-03 11:57:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-03 11:57:50,723 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 22 [2021-10-03 11:57:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:50,723 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-03 11:57:50,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-10-03 11:57:50,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-03 11:57:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-03 11:57:50,725 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:50,725 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] [2021-10-03 11:57:50,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-03 11:57:50,725 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:50,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:50,726 INFO L82 PathProgramCache]: Analyzing trace with hash -200534534, now seen corresponding path program 8 times [2021-10-03 11:57:50,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:50,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836079537] [2021-10-03 11:57:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:50,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:51,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:57:51,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:51,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836079537] [2021-10-03 11:57:51,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836079537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:51,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:51,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-03 11:57:51,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842386384] [2021-10-03 11:57:51,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-03 11:57:51,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:51,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-03 11:57:51,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-03 11:57:51,755 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2021-10-03 11:57:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:52,042 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2021-10-03 11:57:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:52,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 [2021-10-03 11:57:52,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:52,045 INFO L225 Difference]: With dead ends: 27 [2021-10-03 11:57:52,045 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 11:57:52,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 272.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:57:52,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 11:57:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 11:57:52,046 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) [2021-10-03 11:57:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 11:57:52,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-03 11:57:52,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:52,047 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 11:57:52,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2021-10-03 11:57:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 11:57:52,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 11:57:52,050 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 11:57:52,053 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 11:57:52,053 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 11:57:52,053 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-03 11:57:52,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-03 11:57:52,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 11:57:52,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 11:57:52,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 11:57:52 BasicIcfg [2021-10-03 11:57:52,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 11:57:52,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 11:57:52,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 11:57:52,071 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 11:57:52,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:22" (3/4) ... [2021-10-03 11:57:52,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 11:57:52,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 11:57:52,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 11:57:52,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-03 11:57:52,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-03 11:57:52,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-03 11:57:52,103 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:57:52,211 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 11:57:52,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 11:57:52,213 INFO L168 Benchmark]: Toolchain (without parser) took 31173.32 ms. Allocated memory was 54.5 MB in the beginning and 362.8 MB in the end (delta: 308.3 MB). Free memory was 30.2 MB in the beginning and 271.2 MB in the end (delta: -241.0 MB). Peak memory consumption was 67.4 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,214 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:57:52,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.13 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 31.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.57 ms. Allocated memory is still 54.5 MB. Free memory was 31.3 MB in the beginning and 29.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,215 INFO L168 Benchmark]: Boogie Preprocessor took 49.67 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,216 INFO L168 Benchmark]: RCFGBuilder took 1423.72 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 34.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,216 INFO L168 Benchmark]: TraceAbstraction took 29145.90 ms. Allocated memory was 67.1 MB in the beginning and 362.8 MB in the end (delta: 295.7 MB). Free memory was 33.7 MB in the beginning and 277.5 MB in the end (delta: -243.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,217 INFO L168 Benchmark]: Witness Printer took 140.94 ms. Allocated memory is still 362.8 MB. Free memory was 277.5 MB in the beginning and 271.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:52,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.13 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 31.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.57 ms. Allocated memory is still 54.5 MB. Free memory was 31.3 MB in the beginning and 29.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.67 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1423.72 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 34.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29145.90 ms. Allocated memory was 67.1 MB in the beginning and 362.8 MB in the end (delta: 295.7 MB). Free memory was 33.7 MB in the beginning and 277.5 MB in the end (delta: -243.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. * Witness Printer took 140.94 ms. Allocated memory is still 362.8 MB. Free memory was 277.5 MB in the beginning and 271.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13824.6ms, 265 PlacesBefore, 36 PlacesAfterwards, 274 TransitionsBefore, 32 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 8 FixpointIterations, 207 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 0 ConcurrentYvCompositions, 13 ChoiceCompositions, 275 TotalNumberOfCompositions, 595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 516, positive: 466, positive conditional: 0, positive unconditional: 466, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 226, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 226, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 169, negative conditional: 0, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 516, positive: 254, positive conditional: 0, positive unconditional: 254, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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: 86]: 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, 271 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 28951.2ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 15.6ms, AutomataDifference: 3494.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13902.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 158 SDtfs, 847 SDslu, 260 SDs, 0 SdLazy, 823 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1071.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3188.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=1, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 64.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 67 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.4ms SsaConstructionTime, 1514.9ms SatisfiabilityAnalysisTime, 9629.9ms InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 6657 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-03 11:57:52,273 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...