./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01a2c96cfabf5ea27d44ac8a8fb1ac0f39d36a0a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 00:30:24,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:30:24,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:30:24,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:30:24,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:30:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:30:24,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:30:24,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:30:24,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:30:24,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:30:24,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:30:24,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:30:24,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:30:24,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:30:24,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:30:24,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:30:24,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:30:24,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:30:24,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:30:24,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:30:24,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:30:24,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:30:24,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:30:24,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:30:24,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:30:24,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:30:24,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:30:24,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:30:24,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:30:24,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:30:24,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:30:24,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:30:24,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:30:24,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:30:24,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:30:24,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:30:24,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:30:24,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:30:24,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:30:24,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:30:24,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:30:24,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:30:24,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:30:24,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:30:24,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:30:24,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:30:24,560 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:30:24,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:30:24,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:30:24,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:30:24,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:30:24,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:30:24,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:30:24,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:30:24,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:30:24,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:30:24,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:30:24,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:30:24,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:30:24,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:30:24,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:30:24,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:30:24,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:30:24,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:30:24,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:30:24,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:30:24,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:30:24,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:30:24,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:30:24,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:30:24,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:30:24,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01a2c96cfabf5ea27d44ac8a8fb1ac0f39d36a0a [2020-10-26 00:30:24,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:30:24,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:30:24,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:30:24,999 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:30:25,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:30:25,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2020-10-26 00:30:25,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab131a700/f606787819b24ad6aacb322aae0cbecd/FLAGe4312a69c [2020-10-26 00:30:25,730 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:30:25,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2020-10-26 00:30:25,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab131a700/f606787819b24ad6aacb322aae0cbecd/FLAGe4312a69c [2020-10-26 00:30:26,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab131a700/f606787819b24ad6aacb322aae0cbecd [2020-10-26 00:30:26,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:30:26,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:30:26,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:30:26,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:30:26,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:30:26,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c818bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26, skipping insertion in model container [2020-10-26 00:30:26,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:30:26,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:30:26,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:30:26,539 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:30:26,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:30:26,706 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:30:26,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26 WrapperNode [2020-10-26 00:30:26,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:30:26,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:30:26,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:30:26,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:30:26,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:30:26,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:30:26,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:30:26,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:30:26,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... [2020-10-26 00:30:26,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:30:26,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:30:26,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:30:26,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:30:26,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:30:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:30:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:30:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:30:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:30:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:30:26,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:30:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:30:26,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:30:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:30:26,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:30:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:30:26,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:30:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:30:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:30:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:30:26,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:30:26,936 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-26 00:30:27,381 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:30:27,381 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:30:27,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:27 BoogieIcfgContainer [2020-10-26 00:30:27,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:30:27,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:30:27,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:30:27,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:30:27,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:30:26" (1/3) ... [2020-10-26 00:30:27,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e4fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:30:27, skipping insertion in model container [2020-10-26 00:30:27,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:26" (2/3) ... [2020-10-26 00:30:27,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e4fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:30:27, skipping insertion in model container [2020-10-26 00:30:27,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:27" (3/3) ... [2020-10-26 00:30:27,394 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-10-26 00:30:27,411 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:30:27,411 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:30:27,417 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:30:27,419 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:30:27,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,453 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,457 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,457 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,457 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,457 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,458 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,458 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,461 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,473 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,473 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:27,481 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:30:27,498 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:30:27,529 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:30:27,529 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:30:27,529 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:30:27,530 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:30:27,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:30:27,530 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:30:27,530 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:30:27,530 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:30:27,546 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:30:27,548 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:27,565 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:27,568 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:27,622 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-26 00:30:27,622 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:30:27,628 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-26 00:30:27,632 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-26 00:30:29,910 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-26 00:30:30,280 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-10-26 00:30:30,281 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-26 00:30:30,295 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-26 00:30:30,365 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-26 00:30:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-26 00:30:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:30:30,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:30,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:30,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:30,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-10-26 00:30:30,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:30,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623126891] [2020-10-26 00:30:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:30,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623126891] [2020-10-26 00:30:30,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:30,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:30:30,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831864256] [2020-10-26 00:30:30,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:30,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:30,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:30,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:30,667 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-26 00:30:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:30,731 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-26 00:30:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:30,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-26 00:30:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:30,759 INFO L225 Difference]: With dead ends: 670 [2020-10-26 00:30:30,760 INFO L226 Difference]: Without dead ends: 526 [2020-10-26 00:30:30,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-26 00:30:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-26 00:30:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-26 00:30:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-26 00:30:30,902 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-26 00:30:30,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:30,904 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-26 00:30:30,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-26 00:30:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:30:30,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:30,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:30,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:30:30,916 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:30,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-10-26 00:30:30,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:30,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686536054] [2020-10-26 00:30:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686536054] [2020-10-26 00:30:31,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:31,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628092686] [2020-10-26 00:30:31,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:31,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:31,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:31,052 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-26 00:30:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,084 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-10-26 00:30:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:30:31,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:30:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,090 INFO L225 Difference]: With dead ends: 748 [2020-10-26 00:30:31,090 INFO L226 Difference]: Without dead ends: 460 [2020-10-26 00:30:31,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:31,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-26 00:30:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-10-26 00:30:31,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-26 00:30:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-10-26 00:30:31,142 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 11 [2020-10-26 00:30:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,142 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-10-26 00:30:31,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-10-26 00:30:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:30:31,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:30:31,146 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-10-26 00:30:31,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644208255] [2020-10-26 00:30:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644208255] [2020-10-26 00:30:31,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:30:31,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643934428] [2020-10-26 00:30:31,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:31,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:31,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:31,238 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-10-26 00:30:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,253 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-10-26 00:30:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:31,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:30:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,259 INFO L225 Difference]: With dead ends: 442 [2020-10-26 00:30:31,259 INFO L226 Difference]: Without dead ends: 442 [2020-10-26 00:30:31,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-26 00:30:31,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-26 00:30:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 00:30:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-10-26 00:30:31,280 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-10-26 00:30:31,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,281 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-10-26 00:30:31,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-10-26 00:30:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:30:31,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:30:31,284 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,285 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-10-26 00:30:31,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169491185] [2020-10-26 00:30:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169491185] [2020-10-26 00:30:31,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:30:31,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022509437] [2020-10-26 00:30:31,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:31,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:31,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:31,336 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 4 states. [2020-10-26 00:30:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,369 INFO L93 Difference]: Finished difference Result 788 states and 2333 transitions. [2020-10-26 00:30:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:30:31,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:30:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,373 INFO L225 Difference]: With dead ends: 788 [2020-10-26 00:30:31,374 INFO L226 Difference]: Without dead ends: 412 [2020-10-26 00:30:31,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-26 00:30:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-10-26 00:30:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-26 00:30:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-10-26 00:30:31,389 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 13 [2020-10-26 00:30:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,389 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-10-26 00:30:31,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-10-26 00:30:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:30:31,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:30:31,391 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-10-26 00:30:31,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268717381] [2020-10-26 00:30:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268717381] [2020-10-26 00:30:31,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:31,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885814868] [2020-10-26 00:30:31,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:31,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:31,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:31,439 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-10-26 00:30:31,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,473 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-10-26 00:30:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:30:31,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:30:31,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,476 INFO L225 Difference]: With dead ends: 494 [2020-10-26 00:30:31,476 INFO L226 Difference]: Without dead ends: 254 [2020-10-26 00:30:31,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:31,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-26 00:30:31,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-26 00:30:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-26 00:30:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-10-26 00:30:31,487 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-10-26 00:30:31,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,487 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-10-26 00:30:31,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-10-26 00:30:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 00:30:31,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:30:31,489 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,490 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-10-26 00:30:31,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378307699] [2020-10-26 00:30:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378307699] [2020-10-26 00:30:31,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:31,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822727288] [2020-10-26 00:30:31,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:31,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:31,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:31,588 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-10-26 00:30:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,640 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-10-26 00:30:31,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:30:31,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 00:30:31,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,644 INFO L225 Difference]: With dead ends: 315 [2020-10-26 00:30:31,644 INFO L226 Difference]: Without dead ends: 230 [2020-10-26 00:30:31,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:31,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-26 00:30:31,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-26 00:30:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-26 00:30:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-10-26 00:30:31,653 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-10-26 00:30:31,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,653 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-10-26 00:30:31,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-10-26 00:30:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:30:31,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:30:31,655 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,656 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-10-26 00:30:31,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035319902] [2020-10-26 00:30:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035319902] [2020-10-26 00:30:31,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:30:31,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103806992] [2020-10-26 00:30:31,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:30:31,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:30:31,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:31,723 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-10-26 00:30:31,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,777 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-10-26 00:30:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:30:31,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 00:30:31,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,780 INFO L225 Difference]: With dead ends: 246 [2020-10-26 00:30:31,780 INFO L226 Difference]: Without dead ends: 178 [2020-10-26 00:30:31,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:30:31,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-26 00:30:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-26 00:30:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-26 00:30:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-10-26 00:30:31,789 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-10-26 00:30:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,789 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-10-26 00:30:31,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:30:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-10-26 00:30:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:30:31,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:30:31,791 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-10-26 00:30:31,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354718172] [2020-10-26 00:30:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:31,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354718172] [2020-10-26 00:30:31,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:31,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 00:30:31,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124442608] [2020-10-26 00:30:31,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 00:30:31,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:31,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 00:30:31,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:30:31,879 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-10-26 00:30:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:31,949 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-10-26 00:30:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:30:31,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-26 00:30:31,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:31,951 INFO L225 Difference]: With dead ends: 171 [2020-10-26 00:30:31,951 INFO L226 Difference]: Without dead ends: 137 [2020-10-26 00:30:31,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:30:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-26 00:30:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-26 00:30:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-26 00:30:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-10-26 00:30:31,962 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-10-26 00:30:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:31,962 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-10-26 00:30:31,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 00:30:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-10-26 00:30:31,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:30:31,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:31,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:31,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:30:31,964 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:31,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-10-26 00:30:31,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:31,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530242152] [2020-10-26 00:30:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:32,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530242152] [2020-10-26 00:30:32,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:32,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 00:30:32,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574026858] [2020-10-26 00:30:32,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 00:30:32,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:32,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 00:30:32,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:30:32,049 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-10-26 00:30:32,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:32,130 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-10-26 00:30:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 00:30:32,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 00:30:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:32,132 INFO L225 Difference]: With dead ends: 132 [2020-10-26 00:30:32,132 INFO L226 Difference]: Without dead ends: 51 [2020-10-26 00:30:32,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:30:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-26 00:30:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-26 00:30:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 00:30:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-26 00:30:32,135 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-10-26 00:30:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:32,135 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-26 00:30:32,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 00:30:32,136 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-26 00:30:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 00:30:32,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:32,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:32,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 00:30:32,137 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:32,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:32,138 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-10-26 00:30:32,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:32,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779427721] [2020-10-26 00:30:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:32,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779427721] [2020-10-26 00:30:32,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:32,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:32,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576348854] [2020-10-26 00:30:32,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:32,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:32,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:32,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:32,175 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-26 00:30:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:32,181 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-26 00:30:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:32,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-26 00:30:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:32,183 INFO L225 Difference]: With dead ends: 50 [2020-10-26 00:30:32,183 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:30:32,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:30:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:30:32,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:30:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:30:32,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-26 00:30:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:32,184 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:30:32,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:30:32,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:30:32,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 00:30:32,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:30:32 BasicIcfg [2020-10-26 00:30:32,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:30:32,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:30:32,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:30:32,190 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:30:32,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:27" (3/4) ... [2020-10-26 00:30:32,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:30:32,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:30:32,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:30:32,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:30:32,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:30:32,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:30:32,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:30:32,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:30:32,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:30:32,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:30:32,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:30:32,256 INFO L168 Benchmark]: Toolchain (without parser) took 6226.97 ms. Allocated memory was 54.5 MB in the beginning and 119.5 MB in the end (delta: 65.0 MB). Free memory was 30.2 MB in the beginning and 60.5 MB in the end (delta: -30.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,257 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:30:32,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.12 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 23.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.52 ms. Allocated memory is still 54.5 MB. Free memory was 23.7 MB in the beginning and 36.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,259 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 35.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,260 INFO L168 Benchmark]: RCFGBuilder took 545.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 38.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,261 INFO L168 Benchmark]: TraceAbstraction took 4802.90 ms. Allocated memory was 67.1 MB in the beginning and 119.5 MB in the end (delta: 52.4 MB). Free memory was 37.9 MB in the beginning and 63.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,262 INFO L168 Benchmark]: Witness Printer took 64.98 ms. Allocated memory is still 119.5 MB. Free memory was 63.6 MB in the beginning and 60.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:32,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 671.12 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 23.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.52 ms. Allocated memory is still 54.5 MB. Free memory was 23.7 MB in the beginning and 36.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.99 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 35.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 545.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 38.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4802.90 ms. Allocated memory was 67.1 MB in the beginning and 119.5 MB in the end (delta: 52.4 MB). Free memory was 37.9 MB in the beginning and 63.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.98 ms. Allocated memory is still 119.5 MB. Free memory was 63.6 MB in the beginning and 60.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 222 SDtfs, 227 SDslu, 318 SDs, 0 SdLazy, 183 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 5404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...