./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_pso.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/safe019_pso.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 c3932b654cbceffb2d315c0a0838aa6d16dcf1e9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:31:01,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:31:01,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:31:01,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:31:01,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:31:01,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:31:01,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:31:01,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:31:01,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:31:01,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:31:01,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:31:01,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:31:01,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:31:01,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:31:01,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:31:01,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:31:01,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:31:01,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:31:01,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:31:01,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:31:01,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:31:01,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:31:01,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:31:01,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:31:01,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:31:01,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:31:01,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:31:01,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:31:01,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:31:01,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:31:01,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:31:01,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:31:01,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:31:01,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:31:01,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:31:01,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:31:01,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:31:01,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:31:01,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:31:01,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:31:01,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:31:01,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:31:01,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:31:01,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:31:01,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:31:01,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:31:01,688 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:31:01,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:31:01,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:31:01,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:31:01,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:31:01,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:31:01,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:31:01,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:31:01,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:31:01,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:31:01,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:31:01,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:31:01,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:31:01,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:31:01,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:31:01,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:31:01,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:31:01,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:31:01,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:31:01,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:31:01,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:31:01,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:31:01,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:31:01,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:31:01,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:31:01,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3932b654cbceffb2d315c0a0838aa6d16dcf1e9 [2020-10-26 00:31:02,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:31:02,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:31:02,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:31:02,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:31:02,251 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:31:02,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i [2020-10-26 00:31:02,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435238f19/a48c6d9202e148a3a2ad97f09ce3ea47/FLAG62d966f24 [2020-10-26 00:31:03,147 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:31:03,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i [2020-10-26 00:31:03,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435238f19/a48c6d9202e148a3a2ad97f09ce3ea47/FLAG62d966f24 [2020-10-26 00:31:03,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435238f19/a48c6d9202e148a3a2ad97f09ce3ea47 [2020-10-26 00:31:03,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:31:03,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:31:03,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:31:03,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:31:03,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:31:03,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:31:03" (1/1) ... [2020-10-26 00:31:03,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb47509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:03, skipping insertion in model container [2020-10-26 00:31:03,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:31:03" (1/1) ... [2020-10-26 00:31:03,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:31:03,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:31:03,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:31:03,887 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:31:03,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:31:04,069 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:31:04,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04 WrapperNode [2020-10-26 00:31:04,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:31:04,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:31:04,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:31:04,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:31:04,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:31:04,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:31:04,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:31:04,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:31:04,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (1/1) ... [2020-10-26 00:31:04,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:31:04,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:31:04,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:31:04,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:31:04,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (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 00:31:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:31:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:31:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:31:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:31:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:31:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:31:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:31:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:31:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:31:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:31:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:31:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:31:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:31:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:31:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:31:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:31:04,251 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 00:31:04,771 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:31:04,771 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:31:04,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:04 BoogieIcfgContainer [2020-10-26 00:31:04,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:31:04,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:31:04,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:31:04,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:31:04,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:31:03" (1/3) ... [2020-10-26 00:31:04,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f59b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:31:04, skipping insertion in model container [2020-10-26 00:31:04,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:04" (2/3) ... [2020-10-26 00:31:04,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f59b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:31:04, skipping insertion in model container [2020-10-26 00:31:04,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:04" (3/3) ... [2020-10-26 00:31:04,782 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-26 00:31:04,796 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:31:04,796 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:31:04,803 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:31:04,804 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:31:04,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,841 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,841 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,842 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,842 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,844 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,844 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,846 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,846 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,847 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,849 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,850 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,850 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,850 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,857 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,857 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,857 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,860 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:04,867 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:31:04,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:31:04,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:31:04,910 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:31:04,910 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:31:04,910 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:31:04,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:31:04,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:31:04,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:31:04,911 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:31:04,925 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:31:04,928 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:04,931 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:04,934 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:04,986 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-26 00:31:04,987 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:31:04,992 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-26 00:31:04,996 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-26 00:31:07,021 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-26 00:31:07,756 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-26 00:31:07,871 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-26 00:31:08,111 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-26 00:31:08,258 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-26 00:31:08,258 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-26 00:31:08,265 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-26 00:31:08,318 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-26 00:31:08,320 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-26 00:31:08,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:31:08,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:08,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:08,331 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:08,338 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-26 00:31:08,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:08,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704648409] [2020-10-26 00:31:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:08,631 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 00:31:08,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704648409] [2020-10-26 00:31:08,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:08,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:31:08,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993162892] [2020-10-26 00:31:08,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:31:08,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:08,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:31:08,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:31:08,662 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-26 00:31:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:08,767 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-26 00:31:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:31:08,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-26 00:31:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:08,818 INFO L225 Difference]: With dead ends: 670 [2020-10-26 00:31:08,819 INFO L226 Difference]: Without dead ends: 526 [2020-10-26 00:31:08,820 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 00:31:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-26 00:31:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-26 00:31:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-26 00:31:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-26 00:31:08,931 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-26 00:31:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:08,932 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-26 00:31:08,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:31:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-26 00:31:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:31:08,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:08,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:08,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:31:08,937 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:08,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-10-26 00:31:08,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:08,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484424837] [2020-10-26 00:31:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,061 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 00:31:09,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484424837] [2020-10-26 00:31:09,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:09,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925329841] [2020-10-26 00:31:09,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:09,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:09,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:09,069 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-26 00:31:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:09,124 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-10-26 00:31:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:09,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:31:09,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:09,133 INFO L225 Difference]: With dead ends: 724 [2020-10-26 00:31:09,134 INFO L226 Difference]: Without dead ends: 412 [2020-10-26 00:31:09,135 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 00:31:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-26 00:31:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-10-26 00:31:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-26 00:31:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-10-26 00:31:09,179 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-10-26 00:31:09,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:09,179 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-10-26 00:31:09,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:09,179 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-10-26 00:31:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:31:09,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:09,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:09,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:31:09,189 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:09,196 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-10-26 00:31:09,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:09,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157489103] [2020-10-26 00:31:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,312 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 00:31:09,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157489103] [2020-10-26 00:31:09,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:31:09,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893013735] [2020-10-26 00:31:09,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:31:09,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:31:09,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:31:09,321 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-10-26 00:31:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:09,335 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-10-26 00:31:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:31:09,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:31:09,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:09,340 INFO L225 Difference]: With dead ends: 394 [2020-10-26 00:31:09,341 INFO L226 Difference]: Without dead ends: 394 [2020-10-26 00:31:09,341 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 00:31:09,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-26 00:31:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-26 00:31:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-26 00:31:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-10-26 00:31:09,359 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-10-26 00:31:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:09,360 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-10-26 00:31:09,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:31:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-10-26 00:31:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:31:09,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:09,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:09,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:31:09,364 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:09,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-10-26 00:31:09,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:09,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664291364] [2020-10-26 00:31:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,470 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 00:31:09,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664291364] [2020-10-26 00:31:09,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:09,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226910474] [2020-10-26 00:31:09,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:09,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:09,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:09,474 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-10-26 00:31:09,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:09,505 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-10-26 00:31:09,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:09,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:31:09,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:09,509 INFO L225 Difference]: With dead ends: 538 [2020-10-26 00:31:09,509 INFO L226 Difference]: Without dead ends: 286 [2020-10-26 00:31:09,510 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 00:31:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-26 00:31:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-26 00:31:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-26 00:31:09,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-26 00:31:09,523 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-10-26 00:31:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:09,523 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-26 00:31:09,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-26 00:31:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 00:31:09,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:09,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:09,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:31:09,530 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:09,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:09,531 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-10-26 00:31:09,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:09,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915819947] [2020-10-26 00:31:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,655 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 00:31:09,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915819947] [2020-10-26 00:31:09,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:09,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989952718] [2020-10-26 00:31:09,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:09,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:09,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:09,663 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-10-26 00:31:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:09,715 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-10-26 00:31:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:31:09,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 00:31:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:09,718 INFO L225 Difference]: With dead ends: 355 [2020-10-26 00:31:09,718 INFO L226 Difference]: Without dead ends: 262 [2020-10-26 00:31:09,719 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 00:31:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-26 00:31:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-26 00:31:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-26 00:31:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-10-26 00:31:09,730 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-10-26 00:31:09,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:09,731 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-10-26 00:31:09,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-10-26 00:31:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:31:09,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:09,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:09,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:31:09,734 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:09,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:09,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-10-26 00:31:09,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:09,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124943150] [2020-10-26 00:31:09,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,845 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 00:31:09,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124943150] [2020-10-26 00:31:09,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:09,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816346062] [2020-10-26 00:31:09,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:31:09,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:31:09,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:31:09,847 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-10-26 00:31:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:09,906 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-10-26 00:31:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:31:09,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 00:31:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:09,909 INFO L225 Difference]: With dead ends: 283 [2020-10-26 00:31:09,909 INFO L226 Difference]: Without dead ends: 208 [2020-10-26 00:31:09,910 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 00:31:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-26 00:31:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-26 00:31:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-26 00:31:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-26 00:31:09,918 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-10-26 00:31:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:09,919 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-26 00:31:09,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:31:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-26 00:31:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:31:09,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:09,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:09,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:31:09,921 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:09,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:09,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-26 00:31:09,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:09,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952255543] [2020-10-26 00:31:09,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:09,996 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 00:31:09,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952255543] [2020-10-26 00:31:09,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:09,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 00:31:09,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502749032] [2020-10-26 00:31:09,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 00:31:09,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:09,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 00:31:09,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:31:09,999 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-10-26 00:31:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:10,061 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-10-26 00:31:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:31:10,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-26 00:31:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:10,064 INFO L225 Difference]: With dead ends: 201 [2020-10-26 00:31:10,064 INFO L226 Difference]: Without dead ends: 163 [2020-10-26 00:31:10,065 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 00:31:10,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-26 00:31:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-26 00:31:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-26 00:31:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-10-26 00:31:10,072 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-10-26 00:31:10,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:10,072 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-10-26 00:31:10,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 00:31:10,073 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-10-26 00:31:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:10,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:10,074 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 00:31:10,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:31:10,075 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:10,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:10,075 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-10-26 00:31:10,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:10,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366923336] [2020-10-26 00:31:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:10,107 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 00:31:10,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366923336] [2020-10-26 00:31:10,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:10,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:10,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287878283] [2020-10-26 00:31:10,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:10,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:10,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:10,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:10,110 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 4 states. [2020-10-26 00:31:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:10,133 INFO L93 Difference]: Finished difference Result 263 states and 604 transitions. [2020-10-26 00:31:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:31:10,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-26 00:31:10,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:10,135 INFO L225 Difference]: With dead ends: 263 [2020-10-26 00:31:10,135 INFO L226 Difference]: Without dead ends: 127 [2020-10-26 00:31:10,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 00:31:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-26 00:31:10,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-26 00:31:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-26 00:31:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-26 00:31:10,141 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-26 00:31:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:10,142 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-26 00:31:10,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:10,142 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-26 00:31:10,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:10,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:10,143 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 00:31:10,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:31:10,144 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:10,144 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-10-26 00:31:10,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:10,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797741221] [2020-10-26 00:31:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:10,180 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 00:31:10,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797741221] [2020-10-26 00:31:10,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:10,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:10,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429648000] [2020-10-26 00:31:10,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:10,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:10,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:10,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:10,182 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 4 states. [2020-10-26 00:31:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:10,201 INFO L93 Difference]: Finished difference Result 142 states and 293 transitions. [2020-10-26 00:31:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:10,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-26 00:31:10,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:10,203 INFO L225 Difference]: With dead ends: 142 [2020-10-26 00:31:10,203 INFO L226 Difference]: Without dead ends: 87 [2020-10-26 00:31:10,204 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 00:31:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-26 00:31:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-10-26 00:31:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-26 00:31:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 160 transitions. [2020-10-26 00:31:10,208 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 160 transitions. Word has length 18 [2020-10-26 00:31:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:10,208 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 160 transitions. [2020-10-26 00:31:10,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2020-10-26 00:31:10,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:10,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:10,210 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 00:31:10,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 00:31:10,210 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:10,211 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-10-26 00:31:10,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:10,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085574643] [2020-10-26 00:31:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:10,271 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 00:31:10,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085574643] [2020-10-26 00:31:10,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:10,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 00:31:10,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015888017] [2020-10-26 00:31:10,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 00:31:10,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:10,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 00:31:10,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:31:10,280 INFO L87 Difference]: Start difference. First operand 86 states and 160 transitions. Second operand 7 states. [2020-10-26 00:31:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:10,333 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-26 00:31:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:31:10,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 00:31:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:10,334 INFO L225 Difference]: With dead ends: 81 [2020-10-26 00:31:10,334 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:31:10,335 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 00:31:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:31:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:31:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:31:10,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:31:10,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-26 00:31:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:10,336 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:31:10,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 00:31:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:31:10,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:31:10,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 00:31:10,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:31:10 BasicIcfg [2020-10-26 00:31:10,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:31:10,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:31:10,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:31:10,343 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:31:10,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:04" (3/4) ... [2020-10-26 00:31:10,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:31:10,355 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:31:10,355 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:31:10,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:31:10,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:31:10,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:31:10,362 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:31:10,362 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:31:10,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:31:10,414 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:31:10,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:31:10,417 INFO L168 Benchmark]: Toolchain (without parser) took 7068.26 ms. Allocated memory was 52.4 MB in the beginning and 146.8 MB in the end (delta: 94.4 MB). Free memory was 27.7 MB in the beginning and 113.0 MB in the end (delta: -85.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,418 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:31:10,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.25 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 31.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.45 ms. Allocated memory is still 52.4 MB. Free memory was 31.2 MB in the beginning and 29.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,422 INFO L168 Benchmark]: Boogie Preprocessor took 32.46 ms. Allocated memory is still 52.4 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,425 INFO L168 Benchmark]: RCFGBuilder took 614.75 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 42.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,425 INFO L168 Benchmark]: TraceAbstraction took 5566.55 ms. Allocated memory was 62.9 MB in the beginning and 146.8 MB in the end (delta: 83.9 MB). Free memory was 42.6 MB in the beginning and 116.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,427 INFO L168 Benchmark]: Witness Printer took 72.84 ms. Allocated memory is still 146.8 MB. Free memory was 115.1 MB in the beginning and 113.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:10,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 711.25 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 31.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.45 ms. Allocated memory is still 52.4 MB. Free memory was 31.2 MB in the beginning and 29.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.46 ms. Allocated memory is still 52.4 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 614.75 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 42.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5566.55 ms. Allocated memory was 62.9 MB in the beginning and 146.8 MB in the end (delta: 83.9 MB). Free memory was 42.6 MB in the beginning and 116.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Witness Printer took 72.84 ms. Allocated memory is still 146.8 MB. Free memory was 115.1 MB in the beginning and 113.0 MB in the end (delta: 2.1 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 1452 VarBasedMoverChecksPositive, 69 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 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, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 221 SDtfs, 240 SDslu, 330 SDs, 0 SdLazy, 162 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 5745 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...