./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 [2021-10-04 18:29:58,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 18:29:58,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 18:29:58,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 18:29:58,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 18:29:58,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 18:29:58,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 18:29:58,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 18:29:58,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 18:29:58,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 18:29:58,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 18:29:58,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 18:29:58,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 18:29:58,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 18:29:58,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 18:29:58,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 18:29:58,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 18:29:58,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 18:29:58,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 18:29:58,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 18:29:58,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 18:29:58,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 18:29:58,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 18:29:58,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 18:29:58,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 18:29:58,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 18:29:58,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 18:29:58,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 18:29:58,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 18:29:58,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 18:29:58,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 18:29:58,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 18:29:58,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 18:29:58,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 18:29:58,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 18:29:58,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 18:29:58,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 18:29:58,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 18:29:58,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 18:29:58,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 18:29:58,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 18:29:58,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 18:29:58,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 18:29:58,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 18:29:58,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 18:29:58,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 18:29:58,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 18:29:58,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 18:29:58,388 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 18:29:58,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 18:29:58,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 18:29:58,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 18:29:58,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 18:29:58,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 18:29:58,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 18:29:58,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 18:29:58,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 18:29:58,391 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 18:29:58,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 18:29:58,392 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 18:29:58,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 18:29:58,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 18:29:58,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 18:29:58,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 18:29:58,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:29:58,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 18:29:58,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 18:29:58,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 18:29:58,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 18:29:58,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 18:29:58,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 18:29:58,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 18:29:58,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18eec0562fa1cf4ec7b831183de47c98d1363233 [2021-10-04 18:29:58,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 18:29:58,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 18:29:58,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 18:29:58,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 18:29:58,824 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 18:29:58,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/node-subst.wvr.c [2021-10-04 18:29:58,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1bd98950/006e817f1ac44378ba143a86574c87a6/FLAG4fc759cdf [2021-10-04 18:29:59,494 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 18:29:59,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/node-subst.wvr.c [2021-10-04 18:29:59,496 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:29:59,496 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:29:59,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1bd98950/006e817f1ac44378ba143a86574c87a6/FLAG4fc759cdf [2021-10-04 18:29:59,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1bd98950/006e817f1ac44378ba143a86574c87a6 [2021-10-04 18:29:59,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 18:29:59,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 18:29:59,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 18:29:59,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 18:29:59,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 18:29:59,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:29:59" (1/1) ... [2021-10-04 18:29:59,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab7626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:29:59, skipping insertion in model container [2021-10-04 18:29:59,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:29:59" (1/1) ... [2021-10-04 18:29:59,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 18:29:59,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 18:30:00,133 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:30:00,245 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] [2021-10-04 18:30:00,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:30:00,293 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 18:30:00,305 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:30:00,355 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] [2021-10-04 18:30:00,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:30:00,377 INFO L208 MainTranslator]: Completed translation [2021-10-04 18:30:00,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00 WrapperNode [2021-10-04 18:30:00,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 18:30:00,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 18:30:00,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 18:30:00,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 18:30:00,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 18:30:00,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 18:30:00,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 18:30:00,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 18:30:00,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 18:30:00,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 18:30:00,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 18:30:00,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 18:30:00,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (1/1) ... [2021-10-04 18:30:00,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:30:00,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 18:30:00,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 18:30:00,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 18:30:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 18:30:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 18:30:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 18:30:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 18:30:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-04 18:30:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-04 18:30:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 18:30:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 18:30:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-04 18:30:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-04 18:30:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-04 18:30:00,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 18:30:00,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 18:30:00,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 18:30:00,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 18:30:00,627 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 18:30:01,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 18:30:01,952 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-10-04 18:30:01,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:30:01 BoogieIcfgContainer [2021-10-04 18:30:01,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 18:30:01,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 18:30:01,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 18:30:01,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 18:30:01,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:29:59" (1/3) ... [2021-10-04 18:30:01,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f6b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:30:01, skipping insertion in model container [2021-10-04 18:30:01,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:30:00" (2/3) ... [2021-10-04 18:30:01,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f6b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:30:01, skipping insertion in model container [2021-10-04 18:30:01,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:30:01" (3/3) ... [2021-10-04 18:30:01,970 INFO L111 eAbstractionObserver]: Analyzing ICFG node-subst.wvr.c [2021-10-04 18:30:01,976 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 18:30:01,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 18:30:01,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 18:30:01,977 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 18:30:02,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,053 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,055 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,055 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,056 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,056 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,056 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,057 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,057 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,057 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,057 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,062 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,065 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,070 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,071 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,073 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,076 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,077 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,080 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,080 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,080 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,081 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,090 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,090 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,091 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,091 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,091 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,091 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,099 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,099 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,104 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,107 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:30:02,114 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-04 18:30:02,182 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 18:30:02,195 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-04 18:30:02,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-04 18:30:02,223 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 18:30:02,234 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 274 transitions, 572 flow [2021-10-04 18:30:02,238 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 274 transitions, 572 flow [2021-10-04 18:30:02,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 265 places, 274 transitions, 572 flow [2021-10-04 18:30:02,369 INFO L129 PetriNetUnfolder]: 19/271 cut-off events. [2021-10-04 18:30:02,369 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-04 18:30:02,373 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. [2021-10-04 18:30:02,377 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-10-04 18:30:16,100 INFO L131 LiptonReduction]: Checked pairs total: 595 [2021-10-04 18:30:16,102 INFO L133 LiptonReduction]: Total number of compositions: 275 [2021-10-04 18:30:16,117 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 32 transitions, 88 flow [2021-10-04 18:30:16,133 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) [2021-10-04 18:30:16,135 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) [2021-10-04 18:30:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:16,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:16,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:16,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:16,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1559194936, now seen corresponding path program 1 times [2021-10-04 18:30:16,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:16,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297261968] [2021-10-04 18:30:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:16,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:17,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:17,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297261968] [2021-10-04 18:30:17,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297261968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:17,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:17,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-04 18:30:17,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562615412] [2021-10-04 18:30:17,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-04 18:30:17,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-04 18:30:17,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-04 18:30:17,786 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) [2021-10-04 18:30:18,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:18,384 INFO L93 Difference]: Finished difference Result 111 states and 175 transitions. [2021-10-04 18:30:18,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-04 18:30:18,386 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 [2021-10-04 18:30:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:18,396 INFO L225 Difference]: With dead ends: 111 [2021-10-04 18:30:18,396 INFO L226 Difference]: Without dead ends: 82 [2021-10-04 18:30:18,398 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 506.5ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-04 18:30:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-04 18:30:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 55. [2021-10-04 18:30:18,438 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) [2021-10-04 18:30:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2021-10-04 18:30:18,441 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 22 [2021-10-04 18:30:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:18,441 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2021-10-04 18:30:18,441 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) [2021-10-04 18:30:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2021-10-04 18:30:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:18,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:18,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:18,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 18:30:18,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2063171042, now seen corresponding path program 2 times [2021-10-04 18:30:18,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:18,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620260418] [2021-10-04 18:30:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:18,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:20,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:20,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620260418] [2021-10-04 18:30:20,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620260418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:20,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:20,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-04 18:30:20,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376622913] [2021-10-04 18:30:20,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-04 18:30:20,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-04 18:30:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-04 18:30:20,194 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) [2021-10-04 18:30:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:20,650 INFO L93 Difference]: Finished difference Result 74 states and 119 transitions. [2021-10-04 18:30:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:30:20,651 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 [2021-10-04 18:30:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:20,652 INFO L225 Difference]: With dead ends: 74 [2021-10-04 18:30:20,652 INFO L226 Difference]: Without dead ends: 58 [2021-10-04 18:30:20,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 386.0ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-04 18:30:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-04 18:30:20,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2021-10-04 18:30:20,659 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) [2021-10-04 18:30:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 84 transitions. [2021-10-04 18:30:20,660 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 84 transitions. Word has length 22 [2021-10-04 18:30:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:20,661 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 84 transitions. [2021-10-04 18:30:20,661 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) [2021-10-04 18:30:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 84 transitions. [2021-10-04 18:30:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:20,662 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:20,662 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:20,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 18:30:20,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:20,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1553626692, now seen corresponding path program 3 times [2021-10-04 18:30:20,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:20,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447748353] [2021-10-04 18:30:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:20,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:21,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:21,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447748353] [2021-10-04 18:30:21,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447748353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:21,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:21,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-04 18:30:21,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543684436] [2021-10-04 18:30:21,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-04 18:30:21,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:21,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-04 18:30:21,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-04 18:30:21,435 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) [2021-10-04 18:30:21,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:21,983 INFO L93 Difference]: Finished difference Result 72 states and 109 transitions. [2021-10-04 18:30:21,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:30:21,984 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 [2021-10-04 18:30:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:21,985 INFO L225 Difference]: With dead ends: 72 [2021-10-04 18:30:21,985 INFO L226 Difference]: Without dead ends: 50 [2021-10-04 18:30:21,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 495.9ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-04 18:30:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-04 18:30:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-10-04 18:30:21,990 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) [2021-10-04 18:30:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2021-10-04 18:30:21,991 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 22 [2021-10-04 18:30:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:21,992 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2021-10-04 18:30:21,992 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) [2021-10-04 18:30:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2021-10-04 18:30:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:21,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:21,994 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:21,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-04 18:30:21,994 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:21,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1494094734, now seen corresponding path program 4 times [2021-10-04 18:30:21,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:21,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561128421] [2021-10-04 18:30:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:21,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:23,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:23,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561128421] [2021-10-04 18:30:23,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561128421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:23,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:23,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-04 18:30:23,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297785955] [2021-10-04 18:30:23,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-04 18:30:23,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:23,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-04 18:30:23,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-04 18:30:23,402 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) [2021-10-04 18:30:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:23,736 INFO L93 Difference]: Finished difference Result 59 states and 85 transitions. [2021-10-04 18:30:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:30:23,740 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 [2021-10-04 18:30:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:23,741 INFO L225 Difference]: With dead ends: 59 [2021-10-04 18:30:23,741 INFO L226 Difference]: Without dead ends: 50 [2021-10-04 18:30:23,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 330.3ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-04 18:30:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-04 18:30:23,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-10-04 18:30:23,751 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) [2021-10-04 18:30:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 67 transitions. [2021-10-04 18:30:23,753 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 67 transitions. Word has length 22 [2021-10-04 18:30:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:23,754 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 67 transitions. [2021-10-04 18:30:23,754 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) [2021-10-04 18:30:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2021-10-04 18:30:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:23,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:23,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:23,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-04 18:30:23,757 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:23,758 INFO L82 PathProgramCache]: Analyzing trace with hash 581769508, now seen corresponding path program 5 times [2021-10-04 18:30:23,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:23,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613471873] [2021-10-04 18:30:23,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:23,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:24,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:24,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613471873] [2021-10-04 18:30:24,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613471873] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:24,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:24,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-04 18:30:24,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282263610] [2021-10-04 18:30:24,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-04 18:30:24,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-04 18:30:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-04 18:30:24,519 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) [2021-10-04 18:30:24,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:24,877 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-04 18:30:24,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:30:24,878 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 [2021-10-04 18:30:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:24,879 INFO L225 Difference]: With dead ends: 64 [2021-10-04 18:30:24,879 INFO L226 Difference]: Without dead ends: 47 [2021-10-04 18:30:24,879 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 339.4ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-04 18:30:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-04 18:30:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2021-10-04 18:30:24,883 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) [2021-10-04 18:30:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 58 transitions. [2021-10-04 18:30:24,883 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 58 transitions. Word has length 22 [2021-10-04 18:30:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:24,884 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 58 transitions. [2021-10-04 18:30:24,884 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) [2021-10-04 18:30:24,884 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-10-04 18:30:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:24,885 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:24,885 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:24,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-04 18:30:24,886 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:24,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:24,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1601535688, now seen corresponding path program 6 times [2021-10-04 18:30:24,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:24,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694162258] [2021-10-04 18:30:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:24,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:25,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:25,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694162258] [2021-10-04 18:30:25,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694162258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:25,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:25,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-04 18:30:25,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102678456] [2021-10-04 18:30:25,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-04 18:30:25,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-04 18:30:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-04 18:30:25,603 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) [2021-10-04 18:30:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:26,122 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2021-10-04 18:30:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-04 18:30:26,123 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 [2021-10-04 18:30:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:26,123 INFO L225 Difference]: With dead ends: 54 [2021-10-04 18:30:26,123 INFO L226 Difference]: Without dead ends: 38 [2021-10-04 18:30:26,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 576.1ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-04 18:30:26,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-04 18:30:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2021-10-04 18:30:26,127 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) [2021-10-04 18:30:26,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2021-10-04 18:30:26,127 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 43 transitions. Word has length 22 [2021-10-04 18:30:26,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:26,128 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 43 transitions. [2021-10-04 18:30:26,128 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) [2021-10-04 18:30:26,128 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-10-04 18:30:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:26,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:26,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:26,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-04 18:30:26,129 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:26,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:26,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1697392264, now seen corresponding path program 7 times [2021-10-04 18:30:26,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:26,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313300022] [2021-10-04 18:30:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:26,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:29,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:29,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313300022] [2021-10-04 18:30:29,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313300022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:29,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:29,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:30:29,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940373026] [2021-10-04 18:30:29,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:30:29,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:30:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:30:29,139 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) [2021-10-04 18:30:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:29,405 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-10-04 18:30:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:30:29,405 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 [2021-10-04 18:30:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:29,406 INFO L225 Difference]: With dead ends: 37 [2021-10-04 18:30:29,406 INFO L226 Difference]: Without dead ends: 28 [2021-10-04 18:30:29,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 306.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:30:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-04 18:30:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-04 18:30:29,409 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) [2021-10-04 18:30:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-04 18:30:29,409 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 22 [2021-10-04 18:30:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:29,410 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-04 18:30:29,410 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) [2021-10-04 18:30:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-04 18:30:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-04 18:30:29,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:30:29,411 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:30:29,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-04 18:30:29,411 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:30:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:30:29,412 INFO L82 PathProgramCache]: Analyzing trace with hash -200534534, now seen corresponding path program 8 times [2021-10-04 18:30:29,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:30:29,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15872052] [2021-10-04 18:30:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:30:29,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:30:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:30:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:30:30,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:30:30,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15872052] [2021-10-04 18:30:30,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15872052] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:30:30,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:30:30,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-04 18:30:30,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106935064] [2021-10-04 18:30:30,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-04 18:30:30,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:30:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-04 18:30:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-04 18:30:30,300 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) [2021-10-04 18:30:30,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:30:30,577 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2021-10-04 18:30:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:30:30,577 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 [2021-10-04 18:30:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:30:30,578 INFO L225 Difference]: With dead ends: 27 [2021-10-04 18:30:30,578 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 18:30:30,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 263.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-04 18:30:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 18:30:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 18:30:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:30:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 18:30:30,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-04 18:30:30,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:30:30,580 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 18:30:30,580 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) [2021-10-04 18:30:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 18:30:30,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 18:30:30,583 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 18:30:30,584 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 18:30:30,584 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 18:30:30,584 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-04 18:30:30,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-04 18:30:30,589 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 18:30:30,589 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 18:30:30,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:30:30 BasicIcfg [2021-10-04 18:30:30,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 18:30:30,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 18:30:30,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 18:30:30,593 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 18:30:30,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:30:01" (3/4) ... [2021-10-04 18:30:30,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 18:30:30,603 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 18:30:30,603 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 18:30:30,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-04 18:30:30,612 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-04 18:30:30,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-04 18:30:30,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:30:30,687 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 18:30:30,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 18:30:30,690 INFO L168 Benchmark]: Toolchain (without parser) took 30856.46 ms. Allocated memory was 52.4 MB in the beginning and 339.7 MB in the end (delta: 287.3 MB). Free memory was 28.2 MB in the beginning and 282.9 MB in the end (delta: -254.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,690 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory is still 24.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:30:30,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.42 ms. Allocated memory is still 52.4 MB. Free memory was 28.1 MB in the beginning and 29.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.83 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 27.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,691 INFO L168 Benchmark]: Boogie Preprocessor took 62.37 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 24.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,692 INFO L168 Benchmark]: RCFGBuilder took 1455.86 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 28.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,692 INFO L168 Benchmark]: TraceAbstraction took 28630.53 ms. Allocated memory was 62.9 MB in the beginning and 339.7 MB in the end (delta: 276.8 MB). Free memory was 27.8 MB in the beginning and 289.2 MB in the end (delta: -261.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,693 INFO L168 Benchmark]: Witness Printer took 95.39 ms. Allocated memory is still 339.7 MB. Free memory was 289.2 MB in the beginning and 282.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-04 18:30:30,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory is still 24.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 534.42 ms. Allocated memory is still 52.4 MB. Free memory was 28.1 MB in the beginning and 29.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.83 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 27.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.37 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 24.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1455.86 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 28.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28630.53 ms. Allocated memory was 62.9 MB in the beginning and 339.7 MB in the end (delta: 276.8 MB). Free memory was 27.8 MB in the beginning and 289.2 MB in the end (delta: -261.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 95.39 ms. Allocated memory is still 339.7 MB. Free memory was 289.2 MB in the beginning and 282.9 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: 13865.7ms, 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: 195, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 195, negative conditional: 0, negative unconditional: 195, 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: 28410.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 15.9ms, AutomataDifference: 3414.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13937.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 158 SDtfs, 847 SDslu, 260 SDs, 0 SdLazy, 823 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1071.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3205.3ms 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: 61.0ms AutomataMinimizationTime, 8 MinimizatonAttempts, 67 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 50.1ms SsaConstructionTime, 1364.3ms SatisfiabilityAnalysisTime, 9329.1ms 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! [2021-10-04 18:30:30,746 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...