./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_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/safe019_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 0f30e5c8dd22ab2b73732680ca0f663e4efc2b97 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:31:07,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:31:07,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:31:07,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:31:07,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:31:07,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:31:07,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:31:07,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:31:07,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:31:08,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:31:08,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:31:08,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:31:08,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:31:08,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:31:08,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:31:08,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:31:08,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:31:08,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:31:08,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:31:08,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:31:08,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:31:08,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:31:08,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:31:08,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:31:08,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:31:08,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:31:08,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:31:08,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:31:08,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:31:08,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:31:08,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:31:08,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:31:08,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:31:08,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:31:08,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:31:08,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:31:08,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:31:08,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:31:08,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:31:08,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:31:08,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:31:08,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:31:08,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:31:08,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:31:08,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:31:08,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:31:08,139 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:31:08,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:31:08,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:31:08,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:31:08,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:31:08,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:31:08,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:31:08,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:31:08,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:31:08,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:31:08,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:31:08,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:31:08,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:31:08,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:31:08,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:31:08,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:31:08,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:31:08,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:31:08,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:31:08,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:31:08,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:31:08,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:31:08,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:31:08,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:31:08,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:31:08,145 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f30e5c8dd22ab2b73732680ca0f663e4efc2b97 [2020-10-26 00:31:08,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:31:08,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:31:08,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:31:08,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:31:08,650 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:31:08,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-10-26 00:31:08,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7dc43b39/91a086f59d73433a8eaf2e1387868552/FLAG247dda711 [2020-10-26 00:31:09,451 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:31:09,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-10-26 00:31:09,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7dc43b39/91a086f59d73433a8eaf2e1387868552/FLAG247dda711 [2020-10-26 00:31:09,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7dc43b39/91a086f59d73433a8eaf2e1387868552 [2020-10-26 00:31:09,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:31:09,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:31:09,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:31:09,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:31:09,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:31:09,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:31:09" (1/1) ... [2020-10-26 00:31:09,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b4fbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:09, skipping insertion in model container [2020-10-26 00:31:09,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:31:09" (1/1) ... [2020-10-26 00:31:09,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:31:09,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:31:10,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:31:10,272 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:31:10,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:31:10,432 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:31:10,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10 WrapperNode [2020-10-26 00:31:10,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:31:10,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:31:10,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:31:10,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:31:10,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:31:10,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:31:10,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:31:10,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:31:10,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (1/1) ... [2020-10-26 00:31:10,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:31:10,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:31:10,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:31:10,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:31:10,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (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 00:31:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:31:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:31:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:31:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:31:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:31:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:31:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:31:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:31:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:31:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:31:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:31:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:31:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:31:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:31:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:31:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:31:10,642 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 00:31:11,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:31:11,130 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:31:11,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:11 BoogieIcfgContainer [2020-10-26 00:31:11,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:31:11,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:31:11,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:31:11,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:31:11,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:31:09" (1/3) ... [2020-10-26 00:31:11,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa8f02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:31:11, skipping insertion in model container [2020-10-26 00:31:11,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:31:10" (2/3) ... [2020-10-26 00:31:11,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa8f02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:31:11, skipping insertion in model container [2020-10-26 00:31:11,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:11" (3/3) ... [2020-10-26 00:31:11,147 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-10-26 00:31:11,167 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:31:11,167 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:31:11,172 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:31:11,173 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:31:11,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,276 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,276 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,281 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,289 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,289 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,290 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,290 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:31:11,299 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:31:11,314 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:31:11,340 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:31:11,340 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:31:11,340 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:31:11,340 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:31:11,341 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:31:11,341 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:31:11,341 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:31:11,341 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:31:11,356 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:31:11,358 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:11,362 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:11,364 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-26 00:31:11,423 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-26 00:31:11,423 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:31:11,429 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 00:31:11,433 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-26 00:31:13,163 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-26 00:31:13,796 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-26 00:31:14,123 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-26 00:31:14,249 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-26 00:31:14,250 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-26 00:31:14,256 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-26 00:31:14,308 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-26 00:31:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-26 00:31:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:31:14,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:14,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:14,322 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:14,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:14,328 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-26 00:31:14,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:14,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820102701] [2020-10-26 00:31:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:14,597 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 00:31:14,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820102701] [2020-10-26 00:31:14,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:14,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:31:14,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251450734] [2020-10-26 00:31:14,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:31:14,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:14,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:31:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:31:14,625 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-26 00:31:14,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:14,693 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-26 00:31:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:31:14,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-26 00:31:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:14,726 INFO L225 Difference]: With dead ends: 670 [2020-10-26 00:31:14,726 INFO L226 Difference]: Without dead ends: 526 [2020-10-26 00:31:14,727 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 00:31:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-26 00:31:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-26 00:31:14,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-26 00:31:14,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-26 00:31:14,857 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-26 00:31:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:14,858 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-26 00:31:14,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:31:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-26 00:31:14,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:31:14,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:14,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:14,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:31:14,864 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:14,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:14,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-10-26 00:31:14,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:14,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750925584] [2020-10-26 00:31:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,021 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 00:31:15,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750925584] [2020-10-26 00:31:15,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:15,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016101746] [2020-10-26 00:31:15,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:15,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:15,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:15,026 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-26 00:31:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,092 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-10-26 00:31:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:15,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:31:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,098 INFO L225 Difference]: With dead ends: 724 [2020-10-26 00:31:15,098 INFO L226 Difference]: Without dead ends: 412 [2020-10-26 00:31:15,099 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 00:31:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-26 00:31:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-10-26 00:31:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-26 00:31:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-10-26 00:31:15,124 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-10-26 00:31:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,124 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-10-26 00:31:15,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-10-26 00:31:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:31:15,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:15,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:31:15,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,130 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-10-26 00:31:15,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103249884] [2020-10-26 00:31:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,180 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 00:31:15,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103249884] [2020-10-26 00:31:15,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:31:15,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202800476] [2020-10-26 00:31:15,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:31:15,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:31:15,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:31:15,184 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-10-26 00:31:15,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,229 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-10-26 00:31:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:31:15,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:31:15,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,233 INFO L225 Difference]: With dead ends: 394 [2020-10-26 00:31:15,234 INFO L226 Difference]: Without dead ends: 394 [2020-10-26 00:31:15,234 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 00:31:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-26 00:31:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-26 00:31:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-26 00:31:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-10-26 00:31:15,251 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-10-26 00:31:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,251 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-10-26 00:31:15,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:31:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-10-26 00:31:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:31:15,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:15,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:31:15,258 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-10-26 00:31:15,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277686345] [2020-10-26 00:31:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,335 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 00:31:15,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277686345] [2020-10-26 00:31:15,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:15,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051873544] [2020-10-26 00:31:15,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:15,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:15,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:15,338 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-10-26 00:31:15,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,364 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-10-26 00:31:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:15,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:31:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,367 INFO L225 Difference]: With dead ends: 538 [2020-10-26 00:31:15,367 INFO L226 Difference]: Without dead ends: 286 [2020-10-26 00:31:15,368 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 00:31:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-26 00:31:15,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-26 00:31:15,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-26 00:31:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-26 00:31:15,379 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-10-26 00:31:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,379 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-26 00:31:15,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-26 00:31:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 00:31:15,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:15,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:31:15,381 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,382 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-10-26 00:31:15,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975701655] [2020-10-26 00:31:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,488 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 00:31:15,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975701655] [2020-10-26 00:31:15,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:31:15,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907328834] [2020-10-26 00:31:15,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:15,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:15,491 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-10-26 00:31:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,560 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-10-26 00:31:15,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:31:15,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 00:31:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,565 INFO L225 Difference]: With dead ends: 355 [2020-10-26 00:31:15,565 INFO L226 Difference]: Without dead ends: 262 [2020-10-26 00:31:15,565 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 00:31:15,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-26 00:31:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-26 00:31:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-26 00:31:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-10-26 00:31:15,588 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-10-26 00:31:15,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,588 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-10-26 00:31:15,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-10-26 00:31:15,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:31:15,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:15,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:31:15,590 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-10-26 00:31:15,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887407845] [2020-10-26 00:31:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,715 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 00:31:15,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887407845] [2020-10-26 00:31:15,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:15,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494268104] [2020-10-26 00:31:15,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:31:15,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:31:15,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:31:15,718 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-10-26 00:31:15,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,770 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-10-26 00:31:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:31:15,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 00:31:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,772 INFO L225 Difference]: With dead ends: 283 [2020-10-26 00:31:15,772 INFO L226 Difference]: Without dead ends: 208 [2020-10-26 00:31:15,773 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 00:31:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-26 00:31:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-26 00:31:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-26 00:31:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-26 00:31:15,781 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-10-26 00:31:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,781 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-26 00:31:15,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:31:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-26 00:31:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:31:15,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:31:15,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:31:15,783 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,783 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-26 00:31:15,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408567095] [2020-10-26 00:31:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:15,887 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 00:31:15,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408567095] [2020-10-26 00:31:15,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:15,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 00:31:15,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854428884] [2020-10-26 00:31:15,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 00:31:15,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:15,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 00:31:15,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:31:15,891 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-10-26 00:31:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:15,960 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-10-26 00:31:15,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:31:15,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-26 00:31:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:15,962 INFO L225 Difference]: With dead ends: 201 [2020-10-26 00:31:15,962 INFO L226 Difference]: Without dead ends: 163 [2020-10-26 00:31:15,962 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 00:31:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-26 00:31:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-26 00:31:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-26 00:31:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-10-26 00:31:15,968 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-10-26 00:31:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:15,969 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-10-26 00:31:15,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 00:31:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-10-26 00:31:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:15,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:15,970 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 00:31:15,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:31:15,970 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:15,971 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-10-26 00:31:15,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:15,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96286105] [2020-10-26 00:31:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:16,015 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 00:31:16,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96286105] [2020-10-26 00:31:16,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:16,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:16,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589544291] [2020-10-26 00:31:16,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:16,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:16,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:16,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:16,018 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 4 states. [2020-10-26 00:31:16,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:16,041 INFO L93 Difference]: Finished difference Result 263 states and 604 transitions. [2020-10-26 00:31:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:31:16,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-26 00:31:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:16,043 INFO L225 Difference]: With dead ends: 263 [2020-10-26 00:31:16,043 INFO L226 Difference]: Without dead ends: 127 [2020-10-26 00:31:16,044 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 00:31:16,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-26 00:31:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-26 00:31:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-26 00:31:16,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-26 00:31:16,048 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-26 00:31:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:16,049 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-26 00:31:16,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-26 00:31:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:16,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:16,050 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 00:31:16,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:31:16,050 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:16,051 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-10-26 00:31:16,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:16,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886340241] [2020-10-26 00:31:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:16,106 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 00:31:16,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886340241] [2020-10-26 00:31:16,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:16,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:31:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400379289] [2020-10-26 00:31:16,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:31:16,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:16,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:31:16,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:31:16,109 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 4 states. [2020-10-26 00:31:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:16,129 INFO L93 Difference]: Finished difference Result 142 states and 293 transitions. [2020-10-26 00:31:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:31:16,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-26 00:31:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:16,131 INFO L225 Difference]: With dead ends: 142 [2020-10-26 00:31:16,132 INFO L226 Difference]: Without dead ends: 87 [2020-10-26 00:31:16,132 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 00:31:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-26 00:31:16,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-10-26 00:31:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-26 00:31:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 160 transitions. [2020-10-26 00:31:16,136 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 160 transitions. Word has length 18 [2020-10-26 00:31:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:16,137 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 160 transitions. [2020-10-26 00:31:16,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:31:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2020-10-26 00:31:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:31:16,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:31:16,138 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 00:31:16,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 00:31:16,139 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:31:16,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:31:16,140 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-10-26 00:31:16,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:31:16,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280704054] [2020-10-26 00:31:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:31:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:31:16,221 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 00:31:16,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280704054] [2020-10-26 00:31:16,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:31:16,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 00:31:16,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909487593] [2020-10-26 00:31:16,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 00:31:16,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:31:16,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 00:31:16,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:31:16,225 INFO L87 Difference]: Start difference. First operand 86 states and 160 transitions. Second operand 7 states. [2020-10-26 00:31:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:31:16,272 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-26 00:31:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:31:16,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 00:31:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:31:16,273 INFO L225 Difference]: With dead ends: 81 [2020-10-26 00:31:16,273 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:31:16,274 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 00:31:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:31:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:31:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:31:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:31:16,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-26 00:31:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:31:16,275 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:31:16,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 00:31:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:31:16,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:31:16,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 00:31:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:31:16 BasicIcfg [2020-10-26 00:31:16,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:31:16,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:31:16,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:31:16,282 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:31:16,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:31:11" (3/4) ... [2020-10-26 00:31:16,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:31:16,295 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:31:16,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:31:16,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:31:16,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:31:16,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:31:16,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:31:16,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:31:16,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:31:16,350 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:31:16,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:31:16,353 INFO L168 Benchmark]: Toolchain (without parser) took 6667.21 ms. Allocated memory was 41.9 MB in the beginning and 153.1 MB in the end (delta: 111.1 MB). Free memory was 18.4 MB in the beginning and 99.5 MB in the end (delta: -81.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,353 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory is still 27.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:31:16,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.79 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 26.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.83 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,355 INFO L168 Benchmark]: Boogie Preprocessor took 30.72 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 22.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,356 INFO L168 Benchmark]: RCFGBuilder took 596.73 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 23.2 MB in the end (delta: -458.2 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,357 INFO L168 Benchmark]: TraceAbstraction took 5142.42 ms. Allocated memory was 50.3 MB in the beginning and 153.1 MB in the end (delta: 102.8 MB). Free memory was 22.8 MB in the beginning and 102.6 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,358 INFO L168 Benchmark]: Witness Printer took 69.50 ms. Allocated memory is still 153.1 MB. Free memory was 102.6 MB in the beginning and 99.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:31:16,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory is still 27.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 741.79 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 26.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.83 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.72 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 22.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 596.73 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 23.2 MB in the end (delta: -458.2 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5142.42 ms. Allocated memory was 50.3 MB in the beginning and 153.1 MB in the end (delta: 102.8 MB). Free memory was 22.8 MB in the beginning and 102.6 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.50 ms. Allocated memory is still 153.1 MB. Free memory was 102.6 MB in the beginning and 99.5 MB in the end (delta: 3.2 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: 0.4s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 221 SDtfs, 240 SDslu, 330 SDs, 0 SdLazy, 162 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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, 0.5s 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...