/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:27:40,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:27:40,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:27:40,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 17:27:40,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 17:27:40,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 17:27:40,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 17:27:40,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 17:27:40,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 17:27:40,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 17:27:40,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 17:27:40,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-21 17:27:40,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 17:27:40,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 17:27:40,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 17:27:40,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 17:27:40,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 17:27:40,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 17:27:40,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 17:27:40,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 17:27:40,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 17:27:40,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 17:27:40,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 17:27:40,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 17:27:40,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-21 17:27:40,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-21 17:27:40,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-21 17:27:40,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-21 17:27:40,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-21 17:27:40,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-21 17:27:40,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-21 17:27:40,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-21 17:27:40,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-21 17:27:40,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-21 17:27:40,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-21 17:27:40,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-21 17:27:40,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-21 17:27:40,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-21 17:27:40,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:27:40,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:27:40,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:27:40,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-21 17:27:40,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:27:40,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:27:40,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:27:40,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:27:40,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:27:40,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:27:40,229 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:27:40,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:27:40,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:27:40,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:27:40,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:27:40,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:27:40,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:27:40,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:27:40,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:27:40,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:27:40,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:27:40,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:27:40,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:27:40,473 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:27:40,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2021-05-21 17:27:40,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d315508/dddcca2609aa40f7a5b19c8e3bfd857a/FLAGf346b7755 [2021-05-21 17:27:40,920 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:27:40,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2021-05-21 17:27:40,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d315508/dddcca2609aa40f7a5b19c8e3bfd857a/FLAGf346b7755 [2021-05-21 17:27:41,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d315508/dddcca2609aa40f7a5b19c8e3bfd857a [2021-05-21 17:27:41,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:27:41,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:27:41,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:27:41,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:27:41,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:27:41,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503a58d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41, skipping insertion in model container [2021-05-21 17:27:41,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:27:41,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:27:41,429 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i[949,962] [2021-05-21 17:27:41,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:27:41,556 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:27:41,565 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i[949,962] [2021-05-21 17:27:41,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:27:41,638 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:27:41,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41 WrapperNode [2021-05-21 17:27:41,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:27:41,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:27:41,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:27:41,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:27:41,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:27:41,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:27:41,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:27:41,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:27:41,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (1/1) ... [2021-05-21 17:27:41,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:27:41,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:27:41,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:27:41,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:27:41,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (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 [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:27:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:27:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:27:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:27:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:27:41,734 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:27:41,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:27:41,955 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:27:41,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:27:41 BoogieIcfgContainer [2021-05-21 17:27:41,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:27:41,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:27:41,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:27:41,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:27:41,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:27:41" (1/3) ... [2021-05-21 17:27:41,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d8717b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:27:41, skipping insertion in model container [2021-05-21 17:27:41,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:27:41" (2/3) ... [2021-05-21 17:27:41,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d8717b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:27:41, skipping insertion in model container [2021-05-21 17:27:41,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:27:41" (3/3) ... [2021-05-21 17:27:41,961 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2021-05-21 17:27:41,981 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:27:41,981 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:27:41,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:27:41,982 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:27:42,037 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:27:42,051 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 17:27:42,084 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:27:42,084 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:27:42,084 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:27:42,084 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:27:42,084 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:27:42,085 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:27:42,085 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:27:42,085 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:27:42,096 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-05-21 17:27:42,146 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 17:27:42,173 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:42,173 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:27:42,174 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-05-21 17:27:42,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:42,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154188623] [2021-05-21 17:27:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:42,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:42,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154188623] [2021-05-21 17:27:42,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154188623] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:42,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:42,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:27:42,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405984671] [2021-05-21 17:27:42,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:27:42,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:42,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:27:42,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:27:42,476 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:42,593 INFO L93 Difference]: Finished difference Result 1589 states and 4123 transitions. [2021-05-21 17:27:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:27:42,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-05-21 17:27:42,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:42,604 INFO L225 Difference]: With dead ends: 1589 [2021-05-21 17:27:42,604 INFO L226 Difference]: Without dead ends: 672 [2021-05-21 17:27:42,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 99.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:27:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-05-21 17:27:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2021-05-21 17:27:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 2.511177347242921) internal successors, (1685), 671 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1685 transitions. [2021-05-21 17:27:42,651 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1685 transitions. Word has length 41 [2021-05-21 17:27:42,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:42,651 INFO L482 AbstractCegarLoop]: Abstraction has 672 states and 1685 transitions. [2021-05-21 17:27:42,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1685 transitions. [2021-05-21 17:27:42,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-21 17:27:42,653 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:42,653 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:27:42,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:27:42,654 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:42,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1356739669, now seen corresponding path program 1 times [2021-05-21 17:27:42,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:42,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704228644] [2021-05-21 17:27:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:42,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:42,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704228644] [2021-05-21 17:27:42,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704228644] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:42,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:42,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:27:42,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194214579] [2021-05-21 17:27:42,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:27:42,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:42,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:27:42,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:27:42,779 INFO L87 Difference]: Start difference. First operand 672 states and 1685 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:42,981 INFO L93 Difference]: Finished difference Result 1052 states and 2619 transitions. [2021-05-21 17:27:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:27:42,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-05-21 17:27:42,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:42,983 INFO L225 Difference]: With dead ends: 1052 [2021-05-21 17:27:42,997 INFO L226 Difference]: Without dead ends: 612 [2021-05-21 17:27:42,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:27:43,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-05-21 17:27:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2021-05-21 17:27:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 2.469721767594108) internal successors, (1509), 611 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1509 transitions. [2021-05-21 17:27:43,021 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1509 transitions. Word has length 43 [2021-05-21 17:27:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:43,021 INFO L482 AbstractCegarLoop]: Abstraction has 612 states and 1509 transitions. [2021-05-21 17:27:43,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1509 transitions. [2021-05-21 17:27:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-21 17:27:43,024 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:43,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:27:43,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:27:43,025 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:43,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:43,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1448724886, now seen corresponding path program 1 times [2021-05-21 17:27:43,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:43,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138231926] [2021-05-21 17:27:43,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:43,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:43,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138231926] [2021-05-21 17:27:43,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138231926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:43,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:43,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:27:43,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691120991] [2021-05-21 17:27:43,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:27:43,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:43,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:27:43,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:27:43,142 INFO L87 Difference]: Start difference. First operand 612 states and 1509 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:43,237 INFO L93 Difference]: Finished difference Result 842 states and 2073 transitions. [2021-05-21 17:27:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:27:43,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-05-21 17:27:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:43,241 INFO L225 Difference]: With dead ends: 842 [2021-05-21 17:27:43,241 INFO L226 Difference]: Without dead ends: 427 [2021-05-21 17:27:43,242 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:27:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-05-21 17:27:43,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-05-21 17:27:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 2.3896713615023475) internal successors, (1018), 426 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1018 transitions. [2021-05-21 17:27:43,250 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1018 transitions. Word has length 45 [2021-05-21 17:27:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:43,250 INFO L482 AbstractCegarLoop]: Abstraction has 427 states and 1018 transitions. [2021-05-21 17:27:43,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1018 transitions. [2021-05-21 17:27:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-21 17:27:43,251 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:43,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:27:43,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:27:43,251 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:43,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:43,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1556709704, now seen corresponding path program 1 times [2021-05-21 17:27:43,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:43,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227676045] [2021-05-21 17:27:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:43,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:43,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227676045] [2021-05-21 17:27:43,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227676045] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:43,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:43,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:27:43,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075632992] [2021-05-21 17:27:43,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:27:43,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:43,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:27:43,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:27:43,362 INFO L87 Difference]: Start difference. First operand 427 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:43,446 INFO L93 Difference]: Finished difference Result 387 states and 916 transitions. [2021-05-21 17:27:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:27:43,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-05-21 17:27:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:43,448 INFO L225 Difference]: With dead ends: 387 [2021-05-21 17:27:43,448 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:27:43,449 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 96.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:27:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:27:43,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:27:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:27:43,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-05-21 17:27:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:43,449 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:27:43,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:27:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:27:43,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:27:43,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:27:43,451 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:27:43,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:27:43 BasicIcfg [2021-05-21 17:27:43,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:27:43,454 INFO L168 Benchmark]: Toolchain (without parser) took 2158.00 ms. Allocated memory is still 379.6 MB. Free memory was 342.0 MB in the beginning and 269.0 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,454 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 379.6 MB. Free memory was 360.1 MB in the beginning and 360.0 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:27:43,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.76 ms. Allocated memory is still 379.6 MB. Free memory was 341.9 MB in the beginning and 342.9 MB in the end (delta: -975.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 379.6 MB. Free memory was 342.9 MB in the beginning and 340.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,456 INFO L168 Benchmark]: Boogie Preprocessor took 13.06 ms. Allocated memory is still 379.6 MB. Free memory was 340.8 MB in the beginning and 339.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,457 INFO L168 Benchmark]: RCFGBuilder took 276.25 ms. Allocated memory is still 379.6 MB. Free memory was 339.7 MB in the beginning and 317.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,457 INFO L168 Benchmark]: TraceAbstraction took 1495.88 ms. Allocated memory is still 379.6 MB. Free memory was 317.7 MB in the beginning and 269.0 MB in the end (delta: 48.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:43,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 379.6 MB. Free memory was 360.1 MB in the beginning and 360.0 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 340.76 ms. Allocated memory is still 379.6 MB. Free memory was 341.9 MB in the beginning and 342.9 MB in the end (delta: -975.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 379.6 MB. Free memory was 342.9 MB in the beginning and 340.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.06 ms. Allocated memory is still 379.6 MB. Free memory was 340.8 MB in the beginning and 339.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 276.25 ms. Allocated memory is still 379.6 MB. Free memory was 339.7 MB in the beginning and 317.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1495.88 ms. Allocated memory is still 379.6 MB. Free memory was 317.7 MB in the beginning and 269.0 MB in the end (delta: 48.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1367.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 30.2ms, AutomataDifference: 546.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 318 SDtfs, 534 SDslu, 1179 SDs, 0 SdLazy, 120 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 470.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 68.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.5ms SsaConstructionTime, 86.2ms SatisfiabilityAnalysisTime, 432.1ms InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 761 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...