/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:05:08,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:05:08,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:05:08,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:05:08,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:05:08,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:05:08,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:05:08,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:05:08,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:05:08,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:05:08,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:05:08,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:05:08,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:05:08,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:05:08,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:05:08,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:05:08,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:05:08,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:05:08,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:05:08,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:05:08,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:05:08,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:05:08,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:05:08,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:05:08,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:05:08,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:05:08,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:05:08,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:05:08,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:05:08,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:05:08,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:05:08,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:05:08,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:05:08,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:05:08,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:05:08,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:05:08,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:05:08,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:05:08,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:05:08,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:05:08,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:05:08,700 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 [2020-11-11 18:05:08,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:05:08,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:05:08,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:05:08,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:05:08,759 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:05:08,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:05:08,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:05:08,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:05:08,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:05:08,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:05:08,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:05:08,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:05:08,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:05:08,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:05:08,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:05:08,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:05:08,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:05:08,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:05:08,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:05:08,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:05:08,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:05:08,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:05:08,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:05:08,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:05:08,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:05:08,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:05:08,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:05:08,765 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:05:08,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:05:08,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:05:09,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:05:09,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:05:09,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:05:09,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:05:09,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:05:09,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-11-11 18:05:09,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c199c5e8/46bb1e3045ac48feb8f0dc3e5e5b6c18/FLAG02f653e4f [2020-11-11 18:05:10,052 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:05:10,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-11-11 18:05:10,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c199c5e8/46bb1e3045ac48feb8f0dc3e5e5b6c18/FLAG02f653e4f [2020-11-11 18:05:10,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c199c5e8/46bb1e3045ac48feb8f0dc3e5e5b6c18 [2020-11-11 18:05:10,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:05:10,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:05:10,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:05:10,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:05:10,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:05:10,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:10,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dffe43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10, skipping insertion in model container [2020-11-11 18:05:10,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:10,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:05:10,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:05:10,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:05:10,685 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:05:10,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:05:10,921 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:05:10,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10 WrapperNode [2020-11-11 18:05:10,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:05:10,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:05:10,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:05:10,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:05:10,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:10,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:05:11,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:05:11,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:05:11,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:05:11,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... [2020-11-11 18:05:11,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:05:11,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:05:11,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:05:11,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:05:11,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:05:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:05:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:05:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:05:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:05:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:05:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:05:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:05:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:05:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:05:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:05:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:05:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:05:11,120 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:05:11,608 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:05:11,608 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:05:11,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:05:11 BoogieIcfgContainer [2020-11-11 18:05:11,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:05:11,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:05:11,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:05:11,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:05:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:05:10" (1/3) ... [2020-11-11 18:05:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a51810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:05:11, skipping insertion in model container [2020-11-11 18:05:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:05:10" (2/3) ... [2020-11-11 18:05:11,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a51810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:05:11, skipping insertion in model container [2020-11-11 18:05:11,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:05:11" (3/3) ... [2020-11-11 18:05:11,618 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-11-11 18:05:11,636 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:05:11,636 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:05:11,640 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:05:11,641 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:05:11,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,673 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,673 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,680 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,680 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,687 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:05:11,691 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:05:11,704 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:05:11,727 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:05:11,728 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:05:11,728 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:05:11,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:05:11,728 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:05:11,728 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:05:11,728 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:05:11,729 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:05:11,740 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-11 18:05:11,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-11 18:05:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-11 18:05:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-11 18:05:11,855 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:11,856 INFO L494 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] [2020-11-11 18:05:11,856 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:11,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-11-11 18:05:11,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:11,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162818211] [2020-11-11 18:05:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:12,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162818211] [2020-11-11 18:05:12,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:12,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:05:12,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258004336] [2020-11-11 18:05:12,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:05:12,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:12,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:05:12,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:05:12,368 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-11 18:05:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:12,663 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2020-11-11 18:05:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:05:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2020-11-11 18:05:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:12,685 INFO L225 Difference]: With dead ends: 1587 [2020-11-11 18:05:12,685 INFO L226 Difference]: Without dead ends: 670 [2020-11-11 18:05:12,687 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:05:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-11-11 18:05:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2020-11-11 18:05:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 2.5366218236173395) internal successors, (1697), 669 states have internal predecessors, (1697), 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) [2020-11-11 18:05:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1697 transitions. [2020-11-11 18:05:12,784 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1697 transitions. Word has length 37 [2020-11-11 18:05:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:12,784 INFO L481 AbstractCegarLoop]: Abstraction has 670 states and 1697 transitions. [2020-11-11 18:05:12,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-11 18:05:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1697 transitions. [2020-11-11 18:05:12,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-11 18:05:12,788 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:12,788 INFO L494 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] [2020-11-11 18:05:12,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:05:12,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:12,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:12,790 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2020-11-11 18:05:12,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:12,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041900564] [2020-11-11 18:05:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:12,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041900564] [2020-11-11 18:05:12,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:12,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:05:12,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316308660] [2020-11-11 18:05:12,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:05:12,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:12,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:05:12,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:05:12,981 INFO L87 Difference]: Start difference. First operand 670 states and 1697 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-11 18:05:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:13,187 INFO L93 Difference]: Finished difference Result 730 states and 1820 transitions. [2020-11-11 18:05:13,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:05:13,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2020-11-11 18:05:13,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:13,193 INFO L225 Difference]: With dead ends: 730 [2020-11-11 18:05:13,193 INFO L226 Difference]: Without dead ends: 590 [2020-11-11 18:05:13,194 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:05:13,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-11-11 18:05:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2020-11-11 18:05:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 589 states have (on average 2.500848896434635) internal successors, (1473), 589 states have internal predecessors, (1473), 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) [2020-11-11 18:05:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1473 transitions. [2020-11-11 18:05:13,220 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1473 transitions. Word has length 39 [2020-11-11 18:05:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:13,221 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 1473 transitions. [2020-11-11 18:05:13,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-11 18:05:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1473 transitions. [2020-11-11 18:05:13,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-11 18:05:13,223 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:13,223 INFO L494 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] [2020-11-11 18:05:13,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:05:13,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:13,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:13,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2020-11-11 18:05:13,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:13,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470343555] [2020-11-11 18:05:13,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:13,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470343555] [2020-11-11 18:05:13,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:13,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:05:13,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070670612] [2020-11-11 18:05:13,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:05:13,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:13,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:05:13,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:05:13,421 INFO L87 Difference]: Start difference. First operand 590 states and 1473 transitions. 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) [2020-11-11 18:05:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:13,834 INFO L93 Difference]: Finished difference Result 790 states and 1958 transitions. [2020-11-11 18:05:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:05:13,836 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 [2020-11-11 18:05:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:13,839 INFO L225 Difference]: With dead ends: 790 [2020-11-11 18:05:13,839 INFO L226 Difference]: Without dead ends: 445 [2020-11-11 18:05:13,840 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:05:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-11-11 18:05:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2020-11-11 18:05:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.3896396396396398) internal successors, (1061), 444 states have internal predecessors, (1061), 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) [2020-11-11 18:05:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1061 transitions. [2020-11-11 18:05:13,896 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1061 transitions. Word has length 41 [2020-11-11 18:05:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:13,897 INFO L481 AbstractCegarLoop]: Abstraction has 445 states and 1061 transitions. [2020-11-11 18:05:13,897 INFO L482 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) [2020-11-11 18:05:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1061 transitions. [2020-11-11 18:05:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:05:13,899 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:05:13,899 INFO L494 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] [2020-11-11 18:05:13,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:05:13,899 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:05:13,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:05:13,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2020-11-11 18:05:13,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:05:13,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511890974] [2020-11-11 18:05:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:05:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:05:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:05:14,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511890974] [2020-11-11 18:05:14,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:05:14,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:05:14,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591485996] [2020-11-11 18:05:14,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:05:14,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:05:14,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:05:14,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:05:14,059 INFO L87 Difference]: Start difference. First operand 445 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2020-11-11 18:05:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:05:14,225 INFO L93 Difference]: Finished difference Result 365 states and 857 transitions. [2020-11-11 18:05:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:05:14,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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 [2020-11-11 18:05:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:05:14,227 INFO L225 Difference]: With dead ends: 365 [2020-11-11 18:05:14,227 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:05:14,227 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:05:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:05:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:05:14,228 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) [2020-11-11 18:05:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:05:14,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-11 18:05:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:05:14,229 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:05:14,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2020-11-11 18:05:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:05:14,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:05:14,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:05:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:05:14 BasicIcfg [2020-11-11 18:05:14,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:05:14,237 INFO L168 Benchmark]: Toolchain (without parser) took 3945.71 ms. Allocated memory is still 306.2 MB. Free memory was 280.2 MB in the beginning and 242.1 MB in the end (delta: 38.2 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,238 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 306.2 MB. Free memory was 277.3 MB in the beginning and 277.2 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:05:14,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.13 ms. Allocated memory is still 306.2 MB. Free memory was 279.7 MB in the beginning and 281.0 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.47 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 278.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,240 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 306.2 MB. Free memory was 278.9 MB in the beginning and 277.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,241 INFO L168 Benchmark]: RCFGBuilder took 568.08 ms. Allocated memory is still 306.2 MB. Free memory was 277.9 MB in the beginning and 256.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,242 INFO L168 Benchmark]: TraceAbstraction took 2622.76 ms. Allocated memory is still 306.2 MB. Free memory was 255.9 MB in the beginning and 242.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:05:14,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 306.2 MB. Free memory was 277.3 MB in the beginning and 277.2 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 628.13 ms. Allocated memory is still 306.2 MB. Free memory was 279.7 MB in the beginning and 281.0 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 87.47 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 278.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 306.2 MB. Free memory was 278.9 MB in the beginning and 277.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 568.08 ms. Allocated memory is still 306.2 MB. Free memory was 277.9 MB in the beginning and 256.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2622.76 ms. Allocated memory is still 306.2 MB. Free memory was 255.9 MB in the beginning and 242.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 297 SDtfs, 381 SDslu, 926 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...