./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_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/thin002_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 fa3e2ddd2156ae746a75cc70eab9b6ff4fc79271 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:34:55,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:34:55,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:34:55,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:34:55,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:34:55,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:34:55,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:34:55,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:34:55,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:34:55,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:34:55,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:34:55,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:34:55,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:34:55,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:34:55,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:34:55,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:34:55,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:34:55,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:34:55,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:34:55,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:34:55,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:34:55,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:34:55,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:34:55,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:34:55,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:34:55,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:34:55,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:34:55,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:34:55,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:34:55,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:34:55,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:34:55,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:34:55,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:34:55,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:34:55,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:34:55,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:34:55,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:34:55,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:34:55,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:34:55,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:34:55,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:34:55,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:34:55,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:34:55,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:34:55,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:34:55,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:34:55,996 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:34:55,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:34:55,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:34:55,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:34:55,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:34:55,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:34:55,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:34:55,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:34:55,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:34:55,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:34:55,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:34:55,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:34:55,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:34:55,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:34:55,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:34:56,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:34:56,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:34:56,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:34:56,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:34:56,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:34:56,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:34:56,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:34:56,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:34:56,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:34:56,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:34:56,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa3e2ddd2156ae746a75cc70eab9b6ff4fc79271 [2020-10-26 00:34:56,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:34:56,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:34:56,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:34:56,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:34:56,459 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:34:56,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2020-10-26 00:34:56,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fb90cd0/de158c03968f4126bf3380a6a6ef892c/FLAG1b9bc9df6 [2020-10-26 00:34:57,400 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:34:57,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2020-10-26 00:34:57,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fb90cd0/de158c03968f4126bf3380a6a6ef892c/FLAG1b9bc9df6 [2020-10-26 00:34:57,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fb90cd0/de158c03968f4126bf3380a6a6ef892c [2020-10-26 00:34:57,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:34:57,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:34:57,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:34:57,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:34:57,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:34:57,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:34:57" (1/1) ... [2020-10-26 00:34:57,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788897c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:57, skipping insertion in model container [2020-10-26 00:34:57,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:34:57" (1/1) ... [2020-10-26 00:34:57,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:34:57,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:34:58,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:34:58,158 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:34:58,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:34:58,384 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:34:58,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58 WrapperNode [2020-10-26 00:34:58,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:34:58,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:34:58,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:34:58,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:34:58,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:34:58,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:34:58,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:34:58,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:34:58,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (1/1) ... [2020-10-26 00:34:58,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:34:58,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:34:58,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:34:58,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:34:58,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (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 00:34:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:34:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:34:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:34:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:34:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:34:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:34:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:34:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:34:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:34:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:34:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:34:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:34:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:34:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:34:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:34:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:34:58,613 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 00:34:59,145 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:34:59,145 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:34:59,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:34:59 BoogieIcfgContainer [2020-10-26 00:34:59,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:34:59,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:34:59,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:34:59,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:34:59,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:34:57" (1/3) ... [2020-10-26 00:34:59,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91d5bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:34:59, skipping insertion in model container [2020-10-26 00:34:59,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:34:58" (2/3) ... [2020-10-26 00:34:59,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91d5bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:34:59, skipping insertion in model container [2020-10-26 00:34:59,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:34:59" (3/3) ... [2020-10-26 00:34:59,165 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2020-10-26 00:34:59,180 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:34:59,180 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:34:59,187 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:34:59,188 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:34:59,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,241 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,241 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,242 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,243 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,243 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,245 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,245 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,245 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,248 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,249 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,249 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,249 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,250 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,250 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,251 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,251 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,252 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,253 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,257 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,258 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,275 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,290 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,290 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:34:59,301 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:34:59,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:34:59,355 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:34:59,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:34:59,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:34:59,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:34:59,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:34:59,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:34:59,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:34:59,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:34:59,378 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:34:59,380 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-26 00:34:59,385 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-26 00:34:59,387 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-10-26 00:34:59,480 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-10-26 00:34:59,480 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:34:59,488 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-26 00:34:59,506 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-10-26 00:35:02,001 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-26 00:35:02,150 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-26 00:35:02,230 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-10-26 00:35:02,231 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-26 00:35:02,237 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-26 00:35:02,331 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-26 00:35:02,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-26 00:35:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:35:02,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:02,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:02,345 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:02,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:02,351 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-10-26 00:35:02,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:02,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697393219] [2020-10-26 00:35:02,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:02,573 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 00:35:02,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697393219] [2020-10-26 00:35:02,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:02,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:35:02,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775342758] [2020-10-26 00:35:02,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-26 00:35:02,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:02,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-26 00:35:02,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 00:35:02,601 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-26 00:35:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:02,660 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-26 00:35:02,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 00:35:02,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-26 00:35:02,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:02,711 INFO L225 Difference]: With dead ends: 1450 [2020-10-26 00:35:02,713 INFO L226 Difference]: Without dead ends: 1194 [2020-10-26 00:35:02,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 00:35:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-26 00:35:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-26 00:35:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-26 00:35:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-26 00:35:02,947 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-26 00:35:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:02,950 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-26 00:35:02,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-26 00:35:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-26 00:35:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:35:02,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:02,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:02,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:35:02,968 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:02,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-10-26 00:35:02,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:02,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137378473] [2020-10-26 00:35:02,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:03,208 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 00:35:03,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137378473] [2020-10-26 00:35:03,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:03,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:35:03,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028417743] [2020-10-26 00:35:03,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:35:03,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:03,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:35:03,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:35:03,213 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-26 00:35:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:03,266 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-26 00:35:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:35:03,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:35:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:03,279 INFO L225 Difference]: With dead ends: 1322 [2020-10-26 00:35:03,279 INFO L226 Difference]: Without dead ends: 1066 [2020-10-26 00:35:03,281 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 00:35:03,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-26 00:35:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-26 00:35:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-26 00:35:03,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-26 00:35:03,346 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-26 00:35:03,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:03,347 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-26 00:35:03,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:35:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-26 00:35:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:35:03,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:03,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:03,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:35:03,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash -947021519, now seen corresponding path program 1 times [2020-10-26 00:35:03,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:03,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986088556] [2020-10-26 00:35:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:03,491 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 00:35:03,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986088556] [2020-10-26 00:35:03,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:03,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:35:03,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246576519] [2020-10-26 00:35:03,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:35:03,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:03,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:35:03,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:35:03,496 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-26 00:35:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:03,543 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-26 00:35:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:35:03,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-26 00:35:03,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:03,553 INFO L225 Difference]: With dead ends: 1162 [2020-10-26 00:35:03,554 INFO L226 Difference]: Without dead ends: 970 [2020-10-26 00:35:03,554 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 00:35:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-26 00:35:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-26 00:35:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-26 00:35:03,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-26 00:35:03,621 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-26 00:35:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:03,622 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-26 00:35:03,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:35:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-26 00:35:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:35:03,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:03,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:03,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:35:03,625 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:03,628 INFO L82 PathProgramCache]: Analyzing trace with hash 639493830, now seen corresponding path program 1 times [2020-10-26 00:35:03,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:03,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679438124] [2020-10-26 00:35:03,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:03,758 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 00:35:03,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679438124] [2020-10-26 00:35:03,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:03,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:35:03,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400469037] [2020-10-26 00:35:03,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:35:03,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:03,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:35:03,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:35:03,763 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-26 00:35:03,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:03,867 INFO L93 Difference]: Finished difference Result 1162 states and 3980 transitions. [2020-10-26 00:35:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:35:03,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-26 00:35:03,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:03,873 INFO L225 Difference]: With dead ends: 1162 [2020-10-26 00:35:03,873 INFO L226 Difference]: Without dead ends: 508 [2020-10-26 00:35:03,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:35:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-26 00:35:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-26 00:35:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-26 00:35:03,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1638 transitions. [2020-10-26 00:35:03,895 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1638 transitions. Word has length 13 [2020-10-26 00:35:03,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:03,895 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 1638 transitions. [2020-10-26 00:35:03,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:35:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1638 transitions. [2020-10-26 00:35:03,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:35:03,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:03,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:03,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:35:03,898 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:03,898 INFO L82 PathProgramCache]: Analyzing trace with hash 380154805, now seen corresponding path program 1 times [2020-10-26 00:35:03,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:03,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140392975] [2020-10-26 00:35:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:03,946 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 00:35:03,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140392975] [2020-10-26 00:35:03,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:03,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:35:03,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028016435] [2020-10-26 00:35:03,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:35:03,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:03,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:35:03,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:35:03,949 INFO L87 Difference]: Start difference. First operand 508 states and 1638 transitions. Second operand 4 states. [2020-10-26 00:35:03,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:03,974 INFO L93 Difference]: Finished difference Result 544 states and 1704 transitions. [2020-10-26 00:35:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:35:03,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-26 00:35:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:03,979 INFO L225 Difference]: With dead ends: 544 [2020-10-26 00:35:03,980 INFO L226 Difference]: Without dead ends: 472 [2020-10-26 00:35:03,980 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 00:35:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-10-26 00:35:03,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2020-10-26 00:35:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-10-26 00:35:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 1500 transitions. [2020-10-26 00:35:03,998 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 1500 transitions. Word has length 15 [2020-10-26 00:35:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:03,999 INFO L481 AbstractCegarLoop]: Abstraction has 472 states and 1500 transitions. [2020-10-26 00:35:03,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:35:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 1500 transitions. [2020-10-26 00:35:04,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:35:04,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:04,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:04,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:35:04,002 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:04,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2067323682, now seen corresponding path program 1 times [2020-10-26 00:35:04,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:04,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66734336] [2020-10-26 00:35:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:04,055 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 00:35:04,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66734336] [2020-10-26 00:35:04,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:04,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:35:04,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654145842] [2020-10-26 00:35:04,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:35:04,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:04,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:35:04,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:35:04,058 INFO L87 Difference]: Start difference. First operand 472 states and 1500 transitions. Second operand 5 states. [2020-10-26 00:35:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:04,121 INFO L93 Difference]: Finished difference Result 586 states and 1831 transitions. [2020-10-26 00:35:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:35:04,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-26 00:35:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:04,125 INFO L225 Difference]: With dead ends: 586 [2020-10-26 00:35:04,126 INFO L226 Difference]: Without dead ends: 262 [2020-10-26 00:35:04,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:35:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-26 00:35:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-26 00:35:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-26 00:35:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 768 transitions. [2020-10-26 00:35:04,136 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 768 transitions. Word has length 16 [2020-10-26 00:35:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:04,136 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 768 transitions. [2020-10-26 00:35:04,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:35:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 768 transitions. [2020-10-26 00:35:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 00:35:04,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:04,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:35:04,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:35:04,138 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:04,139 INFO L82 PathProgramCache]: Analyzing trace with hash 253681578, now seen corresponding path program 1 times [2020-10-26 00:35:04,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:04,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747303913] [2020-10-26 00:35:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:04,189 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 00:35:04,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747303913] [2020-10-26 00:35:04,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:04,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:35:04,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334857019] [2020-10-26 00:35:04,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:35:04,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:04,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:35:04,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:35:04,191 INFO L87 Difference]: Start difference. First operand 262 states and 768 transitions. Second operand 5 states. [2020-10-26 00:35:04,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:04,241 INFO L93 Difference]: Finished difference Result 358 states and 1024 transitions. [2020-10-26 00:35:04,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:35:04,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-26 00:35:04,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:04,243 INFO L225 Difference]: With dead ends: 358 [2020-10-26 00:35:04,243 INFO L226 Difference]: Without dead ends: 154 [2020-10-26 00:35:04,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:35:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-26 00:35:04,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-26 00:35:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-26 00:35:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-26 00:35:04,250 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-26 00:35:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:04,251 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-26 00:35:04,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:35:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-26 00:35:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:35:04,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:35:04,252 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 00:35:04,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:35:04,252 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:35:04,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:35:04,253 INFO L82 PathProgramCache]: Analyzing trace with hash -2117772472, now seen corresponding path program 1 times [2020-10-26 00:35:04,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:35:04,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915954134] [2020-10-26 00:35:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:35:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:35:04,307 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 00:35:04,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915954134] [2020-10-26 00:35:04,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:35:04,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:35:04,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579752187] [2020-10-26 00:35:04,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:35:04,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:35:04,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:35:04,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:35:04,310 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-26 00:35:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:35:04,350 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-26 00:35:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:35:04,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-26 00:35:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:35:04,351 INFO L225 Difference]: With dead ends: 130 [2020-10-26 00:35:04,351 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:35:04,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:35:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:35:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:35:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:35:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:35:04,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-26 00:35:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:35:04,353 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:35:04,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:35:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:35:04,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:35:04,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:35:04,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:35:04 BasicIcfg [2020-10-26 00:35:04,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:35:04,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:35:04,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:35:04,359 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:35:04,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:34:59" (3/4) ... [2020-10-26 00:35:04,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:35:04,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:35:04,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:35:04,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:35:04,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:35:04,377 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:35:04,377 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:35:04,377 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:35:04,378 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:35:04,429 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:35:04,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:35:04,431 INFO L168 Benchmark]: Toolchain (without parser) took 6836.68 ms. Allocated memory was 50.3 MB in the beginning and 125.8 MB in the end (delta: 75.5 MB). Free memory was 28.0 MB in the beginning and 55.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,432 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:35:04,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.10 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.4 MB in the beginning and 34.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.28 ms. Allocated memory is still 65.0 MB. Free memory was 34.0 MB in the beginning and 31.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,436 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 65.0 MB. Free memory was 31.9 MB in the beginning and 30.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,437 INFO L168 Benchmark]: RCFGBuilder took 663.14 ms. Allocated memory is still 65.0 MB. Free memory was 30.5 MB in the beginning and 43.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,441 INFO L168 Benchmark]: TraceAbstraction took 5203.70 ms. Allocated memory was 65.0 MB in the beginning and 125.8 MB in the end (delta: 60.8 MB). Free memory was 42.6 MB in the beginning and 59.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,441 INFO L168 Benchmark]: Witness Printer took 70.60 ms. Allocated memory is still 125.8 MB. Free memory was 59.1 MB in the beginning and 55.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:35:04,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.10 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.4 MB in the beginning and 34.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.28 ms. Allocated memory is still 65.0 MB. Free memory was 34.0 MB in the beginning and 31.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 65.0 MB. Free memory was 31.9 MB in the beginning and 30.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 663.14 ms. Allocated memory is still 65.0 MB. Free memory was 30.5 MB in the beginning and 43.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5203.70 ms. Allocated memory was 65.0 MB in the beginning and 125.8 MB in the end (delta: 60.8 MB). Free memory was 42.6 MB in the beginning and 59.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.60 ms. Allocated memory is still 125.8 MB. Free memory was 59.1 MB in the beginning and 55.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1644 VarBasedMoverChecksPositive, 61 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 49 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 172 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 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, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 232 SDtfs, 257 SDslu, 326 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...