/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:40:58,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:40:58,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:40:58,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:40:58,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:40:58,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:40:58,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:40:58,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:40:58,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:40:58,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:40:58,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:40:58,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:40:58,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:40:58,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:40:58,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:40:58,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:40:58,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:40:58,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:40:58,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:40:58,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:40:58,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:40:58,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:40:58,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:40:58,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:40:58,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:40:58,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:40:58,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:40:58,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:40:58,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:40:58,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:40:58,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:40:58,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:40:58,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:40:58,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:40:58,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:40:58,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:40:58,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:40:58,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:40:58,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:40:58,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:40:58,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:40:58,624 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-keepdead.epf [2020-12-17 23:40:58,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:40:58,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:40:58,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:40:58,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:40:58,659 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:40:58,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:40:58,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:40:58,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:40:58,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:40:58,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:40:58,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:40:58,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:40:58,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:40:58,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:40:58,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:40:58,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:40:58,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:40:58,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:40:58,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:40:58,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:40:58,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:40:58,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:40:58,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:40:58,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:40:58,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:40:58,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:40:58,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:40:58,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:40:58,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:40:58,666 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:40:58,666 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:40:58,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:40:59,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:40:59,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:40:59,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:40:59,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:40:59,105 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:40:59,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-12-17 23:40:59,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21990483f/44bc909ecbd4468daa8b3a7da7b3e7ac/FLAGffb2f0042 [2020-12-17 23:41:00,012 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:41:00,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-12-17 23:41:00,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21990483f/44bc909ecbd4468daa8b3a7da7b3e7ac/FLAGffb2f0042 [2020-12-17 23:41:00,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21990483f/44bc909ecbd4468daa8b3a7da7b3e7ac [2020-12-17 23:41:00,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:41:00,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:41:00,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:41:00,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:41:00,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:41:00,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:41:00" (1/1) ... [2020-12-17 23:41:00,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab2c9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:00, skipping insertion in model container [2020-12-17 23:41:00,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:41:00" (1/1) ... [2020-12-17 23:41:00,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:41:00,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:41:00,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:41:00,877 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:41:00,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:41:01,096 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:41:01,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01 WrapperNode [2020-12-17 23:41:01,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:41:01,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:41:01,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:41:01,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:41:01,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:41:01,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:41:01,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:41:01,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:41:01,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (1/1) ... [2020-12-17 23:41:01,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:41:01,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:41:01,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:41:01,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:41:01,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (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 [2020-12-17 23:41:01,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:41:01,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:41:01,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:41:01,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:41:01,397 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:41:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:41:01,398 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:41:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:41:01,398 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:41:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:41:01,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:41:01,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:41:01,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:41:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:41:01,401 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:41:01,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:41:01,869 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:41:01,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:41:01 BoogieIcfgContainer [2020-12-17 23:41:01,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:41:01,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:41:01,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:41:01,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:41:01,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:41:00" (1/3) ... [2020-12-17 23:41:01,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d952e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:41:01, skipping insertion in model container [2020-12-17 23:41:01,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:01" (2/3) ... [2020-12-17 23:41:01,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d952e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:41:01, skipping insertion in model container [2020-12-17 23:41:01,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:41:01" (3/3) ... [2020-12-17 23:41:01,881 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2020-12-17 23:41:01,899 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:41:01,899 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:41:01,903 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:41:01,904 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:41:01,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,935 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,935 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,937 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,937 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,937 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,942 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,943 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,943 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,946 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,946 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,953 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,953 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:01,961 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:41:01,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:41:02,000 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:41:02,000 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:41:02,001 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:41:02,001 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:41:02,001 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:41:02,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:41:02,001 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:41:02,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:41:02,014 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-12-17 23:41:02,822 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-12-17 23:41:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-12-17 23:41:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:41:02,935 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:02,936 INFO L504 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] [2020-12-17 23:41:02,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:02,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:02,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-12-17 23:41:02,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:02,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612185099] [2020-12-17 23:41:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:03,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612185099] [2020-12-17 23:41:03,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:03,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:03,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340532534] [2020-12-17 23:41:03,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:03,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:03,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:03,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:03,597 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-12-17 23:41:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:03,998 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-12-17 23:41:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:04,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2020-12-17 23:41:04,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:04,003 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:04,004 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 42464 transitions. Word has length 42 [2020-12-17 23:41:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:04,006 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 42464 transitions. [2020-12-17 23:41:04,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-12-17 23:41:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 42464 transitions. [2020-12-17 23:41:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:41:04,024 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:04,024 INFO L504 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] [2020-12-17 23:41:04,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:41:04,025 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:04,026 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2020-12-17 23:41:04,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:04,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111830743] [2020-12-17 23:41:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:04,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111830743] [2020-12-17 23:41:04,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:04,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:04,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001717238] [2020-12-17 23:41:04,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:04,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:04,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:04,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:04,239 INFO L87 Difference]: Start difference. First operand 12200 states and 42464 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2020-12-17 23:41:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:04,976 INFO L93 Difference]: Finished difference Result 16820 states and 57820 transitions. [2020-12-17 23:41:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:04,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2020-12-17 23:41:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:04,978 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:41:04,979 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 57820 transitions. Word has length 44 [2020-12-17 23:41:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:04,979 INFO L481 AbstractCegarLoop]: Abstraction has 16820 states and 57820 transitions. [2020-12-17 23:41:04,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2020-12-17 23:41:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 57820 transitions. [2020-12-17 23:41:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:41:05,006 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:05,006 INFO L504 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, 1] [2020-12-17 23:41:05,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:41:05,006 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:05,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2020-12-17 23:41:05,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:05,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254398947] [2020-12-17 23:41:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:05,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254398947] [2020-12-17 23:41:05,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:05,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:05,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37216803] [2020-12-17 23:41:05,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:05,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:05,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:05,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:05,212 INFO L87 Difference]: Start difference. First operand 16820 states and 57820 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-12-17 23:41:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:05,753 INFO L93 Difference]: Finished difference Result 28580 states and 96880 transitions. [2020-12-17 23:41:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:05,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2020-12-17 23:41:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:05,756 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:05,756 INFO L78 Accepts]: Start accepts. Automaton has 28580 states and 96880 transitions. Word has length 47 [2020-12-17 23:41:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:05,758 INFO L481 AbstractCegarLoop]: Abstraction has 28580 states and 96880 transitions. [2020-12-17 23:41:05,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-12-17 23:41:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 28580 states and 96880 transitions. [2020-12-17 23:41:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:41:05,900 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:05,900 INFO L504 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, 1, 1] [2020-12-17 23:41:05,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:41:05,901 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:05,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2020-12-17 23:41:05,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:05,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560007378] [2020-12-17 23:41:05,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:06,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560007378] [2020-12-17 23:41:06,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:06,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:06,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146981046] [2020-12-17 23:41:06,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:06,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:06,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:06,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:06,149 INFO L87 Difference]: Start difference. First operand 28580 states and 96880 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-12-17 23:41:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:06,826 INFO L93 Difference]: Finished difference Result 48884 states and 162964 transitions. [2020-12-17 23:41:06,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:06,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-12-17 23:41:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:06,829 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:41:06,829 INFO L78 Accepts]: Start accepts. Automaton has 48884 states and 162964 transitions. Word has length 48 [2020-12-17 23:41:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:06,830 INFO L481 AbstractCegarLoop]: Abstraction has 48884 states and 162964 transitions. [2020-12-17 23:41:06,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-12-17 23:41:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 48884 states and 162964 transitions. [2020-12-17 23:41:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:41:07,061 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:07,061 INFO L504 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, 1, 1, 1, 1, 1] [2020-12-17 23:41:07,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:41:07,061 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:07,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:07,063 INFO L82 PathProgramCache]: Analyzing trace with hash 710827437, now seen corresponding path program 1 times [2020-12-17 23:41:07,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:07,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027380175] [2020-12-17 23:41:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:07,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027380175] [2020-12-17 23:41:07,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:07,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:07,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556666557] [2020-12-17 23:41:07,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:07,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:07,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:07,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:07,248 INFO L87 Difference]: Start difference. First operand 48884 states and 162964 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-12-17 23:41:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:08,297 INFO L93 Difference]: Finished difference Result 83524 states and 276920 transitions. [2020-12-17 23:41:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:08,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2020-12-17 23:41:08,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:08,299 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:41:08,299 INFO L78 Accepts]: Start accepts. Automaton has 83524 states and 276920 transitions. Word has length 51 [2020-12-17 23:41:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:08,300 INFO L481 AbstractCegarLoop]: Abstraction has 83524 states and 276920 transitions. [2020-12-17 23:41:08,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-12-17 23:41:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 83524 states and 276920 transitions. [2020-12-17 23:41:08,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:41:08,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:41:08,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:41:08 BasicIcfg [2020-12-17 23:41:08,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:41:08,519 INFO L168 Benchmark]: Toolchain (without parser) took 8267.10 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 277.0 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 419.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:08,520 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:41:08,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.20 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:08,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.07 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 284.8 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:08,523 INFO L168 Benchmark]: Boogie Preprocessor took 48.82 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 283.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:41:08,523 INFO L168 Benchmark]: RCFGBuilder took 572.73 ms. Allocated memory is still 302.0 MB. Free memory was 283.2 MB in the beginning and 259.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:08,524 INFO L168 Benchmark]: TraceAbstraction took 6643.24 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 259.3 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 401.9 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:08,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 844.20 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 151.07 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 284.8 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 48.82 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 283.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 572.73 ms. Allocated memory is still 302.0 MB. Free memory was 283.2 MB in the beginning and 259.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6643.24 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 259.3 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 401.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 610 SDtfs, 1356 SDslu, 2143 SDs, 0 SdLazy, 254 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83524occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 27837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...