/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:30:53,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:30:53,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:30:53,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:30:53,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:30:53,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:30:53,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:30:53,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:30:53,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:30:53,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:30:53,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:30:53,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:30:53,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:30:53,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:30:53,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:30:53,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:30:53,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:30:53,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:30:53,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:30:53,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:30:53,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:30:53,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:30:53,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:30:53,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:30:53,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:30:53,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:30:53,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:30:53,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:30:53,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:30:53,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:30:53,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:30:53,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:30:53,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:30:53,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:30:53,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:30:53,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:30:53,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:30:53,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:30:53,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:30:53,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:30:53,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:30:53,598 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-New_States.epf [2020-11-12 12:30:53,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:30:53,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:30:53,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:30:53,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:30:53,628 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:30:53,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:30:53,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:30:53,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:30:53,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:30:53,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:30:53,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:30:53,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:30:53,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:30:53,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:30:53,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:30:53,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:30:53,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:30:53,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:30:53,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:30:53,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:30:53,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:30:53,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:30:53,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:30:53,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:30:53,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:30:53,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:30:53,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:30:53,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:30:53,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:30:53,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:30:53,634 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:30:54,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:30:54,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:30:54,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:30:54,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:30:54,069 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:30:54,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-11-12 12:30:54,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55f7a14c/82d5a679fae143289659317acf5ed32e/FLAG8ac9e3236 [2020-11-12 12:30:54,960 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:30:54,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-11-12 12:30:54,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55f7a14c/82d5a679fae143289659317acf5ed32e/FLAG8ac9e3236 [2020-11-12 12:30:55,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55f7a14c/82d5a679fae143289659317acf5ed32e [2020-11-12 12:30:55,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:30:55,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:30:55,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:30:55,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:30:55,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:30:55,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0cf903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55, skipping insertion in model container [2020-11-12 12:30:55,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:30:55,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:30:55,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:30:55,655 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:30:55,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:30:55,831 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:30:55,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55 WrapperNode [2020-11-12 12:30:55,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:30:55,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:30:55,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:30:55,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:30:55,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:30:55,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:30:55,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:30:55,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:30:55,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (1/1) ... [2020-11-12 12:30:55,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:30:55,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:30:55,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:30:55,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:30:55,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (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 [2020-11-12 12:30:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:30:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:30:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:30:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:30:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:30:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:30:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:30:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:30:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:30:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:30:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 12:30:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 12:30:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:30:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:30:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:30:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:30:56,007 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:30:56,590 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:30:56,590 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:30:56,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:30:56 BoogieIcfgContainer [2020-11-12 12:30:56,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:30:56,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:30:56,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:30:56,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:30:56,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:30:55" (1/3) ... [2020-11-12 12:30:56,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d6ad0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:30:56, skipping insertion in model container [2020-11-12 12:30:56,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:55" (2/3) ... [2020-11-12 12:30:56,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d6ad0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:30:56, skipping insertion in model container [2020-11-12 12:30:56,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:30:56" (3/3) ... [2020-11-12 12:30:56,606 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-11-12 12:30:56,624 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:30:56,624 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:30:56,628 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:30:56,629 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:30:56,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,687 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,687 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,693 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,693 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,704 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,704 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,705 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,705 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,709 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,710 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,717 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,726 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,727 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,733 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:56,736 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:30:56,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 12:30:56,785 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:30:56,785 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:30:56,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:30:56,786 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:30:56,786 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:30:56,786 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:30:56,786 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:30:56,787 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:30:56,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-11-12 12:31:10,488 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-11-12 12:31:15,487 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 4989ms [2020-11-12 12:31:15,670 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-11-12 12:31:16,282 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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) [2020-11-12 12:31:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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) [2020-11-12 12:31:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:31:16,530 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:16,531 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:16,532 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:16,539 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-11-12 12:31:16,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:16,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980053371] [2020-11-12 12:31:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:17,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980053371] [2020-11-12 12:31:17,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:17,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:31:17,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064634280] [2020-11-12 12:31:17,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:31:17,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:17,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:31:17,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:31:17,201 INFO L87 Difference]: Start difference. First operand has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2020-11-12 12:31:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:18,547 INFO L93 Difference]: Finished difference Result 127167 states and 154283 transitions. [2020-11-12 12:31:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:31:18,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2020-11-12 12:31:18,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:18,740 INFO L225 Difference]: With dead ends: 127167 [2020-11-12 12:31:18,740 INFO L226 Difference]: Without dead ends: 31115 [2020-11-12 12:31:18,742 INFO L749 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 [2020-11-12 12:31:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31115 states. [2020-11-12 12:31:20,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31115 to 31115. [2020-11-12 12:31:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31115 states, 29400 states have (on average 1.3991496598639457) internal successors, (41135), 31114 states have internal predecessors, (41135), 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) [2020-11-12 12:31:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31115 states to 31115 states and 41135 transitions. [2020-11-12 12:31:20,462 INFO L78 Accepts]: Start accepts. Automaton has 31115 states and 41135 transitions. Word has length 49 [2020-11-12 12:31:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:20,463 INFO L481 AbstractCegarLoop]: Abstraction has 31115 states and 41135 transitions. [2020-11-12 12:31:20,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2020-11-12 12:31:20,463 INFO L276 IsEmpty]: Start isEmpty. Operand 31115 states and 41135 transitions. [2020-11-12 12:31:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:31:20,492 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:20,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:20,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:31:20,493 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:20,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1475547447, now seen corresponding path program 1 times [2020-11-12 12:31:20,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:20,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596577692] [2020-11-12 12:31:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:20,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596577692] [2020-11-12 12:31:20,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:20,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:31:20,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693714310] [2020-11-12 12:31:20,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:31:20,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:20,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:31:20,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:31:20,728 INFO L87 Difference]: Start difference. First operand 31115 states and 41135 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2020-11-12 12:31:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:20,994 INFO L93 Difference]: Finished difference Result 31255 states and 40810 transitions. [2020-11-12 12:31:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:31:20,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2020-11-12 12:31:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:21,047 INFO L225 Difference]: With dead ends: 31255 [2020-11-12 12:31:21,047 INFO L226 Difference]: Without dead ends: 23028 [2020-11-12 12:31:21,049 INFO L749 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 [2020-11-12 12:31:21,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23028 states. [2020-11-12 12:31:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23028 to 23028. [2020-11-12 12:31:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 21803 states have (on average 1.379947713617392) internal successors, (30087), 23027 states have internal predecessors, (30087), 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) [2020-11-12 12:31:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 30087 transitions. [2020-11-12 12:31:21,940 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 30087 transitions. Word has length 51 [2020-11-12 12:31:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:21,941 INFO L481 AbstractCegarLoop]: Abstraction has 23028 states and 30087 transitions. [2020-11-12 12:31:21,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2020-11-12 12:31:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 30087 transitions. [2020-11-12 12:31:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:31:21,964 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:21,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:21,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:31:21,965 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:21,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:21,966 INFO L82 PathProgramCache]: Analyzing trace with hash 985046870, now seen corresponding path program 1 times [2020-11-12 12:31:21,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:21,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158768320] [2020-11-12 12:31:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:22,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:22,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158768320] [2020-11-12 12:31:22,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:22,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:31:22,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595460664] [2020-11-12 12:31:22,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:31:22,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:22,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:31:22,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:31:22,136 INFO L87 Difference]: Start difference. First operand 23028 states and 30087 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2020-11-12 12:31:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:22,449 INFO L93 Difference]: Finished difference Result 30372 states and 40242 transitions. [2020-11-12 12:31:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:31:22,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2020-11-12 12:31:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:22,476 INFO L225 Difference]: With dead ends: 30372 [2020-11-12 12:31:22,476 INFO L226 Difference]: Without dead ends: 12560 [2020-11-12 12:31:22,477 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:31:22,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12560 states. [2020-11-12 12:31:22,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12560 to 12560. [2020-11-12 12:31:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12560 states, 11860 states have (on average 1.3306070826306915) internal successors, (15781), 12559 states have internal predecessors, (15781), 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) [2020-11-12 12:31:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12560 states to 12560 states and 15781 transitions. [2020-11-12 12:31:22,746 INFO L78 Accepts]: Start accepts. Automaton has 12560 states and 15781 transitions. Word has length 53 [2020-11-12 12:31:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:22,748 INFO L481 AbstractCegarLoop]: Abstraction has 12560 states and 15781 transitions. [2020-11-12 12:31:22,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2020-11-12 12:31:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 12560 states and 15781 transitions. [2020-11-12 12:31:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-12 12:31:22,771 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:22,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:22,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:31:22,773 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:22,775 INFO L82 PathProgramCache]: Analyzing trace with hash 466090561, now seen corresponding path program 1 times [2020-11-12 12:31:22,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:22,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582914730] [2020-11-12 12:31:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:22,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582914730] [2020-11-12 12:31:22,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:22,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:31:22,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668725561] [2020-11-12 12:31:22,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:31:22,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:22,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:31:22,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:31:22,991 INFO L87 Difference]: Start difference. First operand 12560 states and 15781 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-12 12:31:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:23,218 INFO L93 Difference]: Finished difference Result 18919 states and 24136 transitions. [2020-11-12 12:31:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:31:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2020-11-12 12:31:23,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:23,237 INFO L225 Difference]: With dead ends: 18919 [2020-11-12 12:31:23,237 INFO L226 Difference]: Without dead ends: 9455 [2020-11-12 12:31:23,238 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:31:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9455 states. [2020-11-12 12:31:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9455 to 9455. [2020-11-12 12:31:23,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9455 states, 8895 states have (on average 1.3326587970770096) internal successors, (11854), 9454 states have internal predecessors, (11854), 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) [2020-11-12 12:31:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9455 states to 9455 states and 11854 transitions. [2020-11-12 12:31:23,625 INFO L78 Accepts]: Start accepts. Automaton has 9455 states and 11854 transitions. Word has length 56 [2020-11-12 12:31:23,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:23,625 INFO L481 AbstractCegarLoop]: Abstraction has 9455 states and 11854 transitions. [2020-11-12 12:31:23,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-12 12:31:23,633 INFO L276 IsEmpty]: Start isEmpty. Operand 9455 states and 11854 transitions. [2020-11-12 12:31:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 12:31:23,647 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:23,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:23,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:31:23,648 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:23,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1532781063, now seen corresponding path program 1 times [2020-11-12 12:31:23,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:23,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510753810] [2020-11-12 12:31:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:23,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510753810] [2020-11-12 12:31:23,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:23,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:31:23,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029864920] [2020-11-12 12:31:23,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:31:23,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:23,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:31:23,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:31:23,818 INFO L87 Difference]: Start difference. First operand 9455 states and 11854 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2020-11-12 12:31:23,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:23,984 INFO L93 Difference]: Finished difference Result 9295 states and 11294 transitions. [2020-11-12 12:31:23,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:31:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2020-11-12 12:31:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:23,996 INFO L225 Difference]: With dead ends: 9295 [2020-11-12 12:31:23,997 INFO L226 Difference]: Without dead ends: 6611 [2020-11-12 12:31:23,997 INFO L749 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 [2020-11-12 12:31:24,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-11-12 12:31:24,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6611. [2020-11-12 12:31:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6211 states have (on average 1.3054258573498632) internal successors, (8108), 6610 states have internal predecessors, (8108), 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) [2020-11-12 12:31:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 8108 transitions. [2020-11-12 12:31:24,143 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 8108 transitions. Word has length 57 [2020-11-12 12:31:24,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:24,144 INFO L481 AbstractCegarLoop]: Abstraction has 6611 states and 8108 transitions. [2020-11-12 12:31:24,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2020-11-12 12:31:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 8108 transitions. [2020-11-12 12:31:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:31:24,155 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:24,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:24,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:31:24,156 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1601629032, now seen corresponding path program 1 times [2020-11-12 12:31:24,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:24,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022927974] [2020-11-12 12:31:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:24,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022927974] [2020-11-12 12:31:24,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:24,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:31:24,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155731430] [2020-11-12 12:31:24,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:31:24,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:31:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:31:24,381 INFO L87 Difference]: Start difference. First operand 6611 states and 8108 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:31:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:24,616 INFO L93 Difference]: Finished difference Result 10202 states and 12838 transitions. [2020-11-12 12:31:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:31:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-11-12 12:31:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:24,627 INFO L225 Difference]: With dead ends: 10202 [2020-11-12 12:31:24,627 INFO L226 Difference]: Without dead ends: 5249 [2020-11-12 12:31:24,628 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:31:24,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2020-11-12 12:31:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 5249. [2020-11-12 12:31:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 4929 states have (on average 1.2966118888212619) internal successors, (6391), 5248 states have internal predecessors, (6391), 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) [2020-11-12 12:31:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6391 transitions. [2020-11-12 12:31:24,740 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6391 transitions. Word has length 59 [2020-11-12 12:31:24,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:24,740 INFO L481 AbstractCegarLoop]: Abstraction has 5249 states and 6391 transitions. [2020-11-12 12:31:24,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:31:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6391 transitions. [2020-11-12 12:31:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-12 12:31:24,749 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:31:24,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:31:24,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:31:24,750 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:31:24,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:31:24,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1579380312, now seen corresponding path program 1 times [2020-11-12 12:31:24,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:31:24,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356780139] [2020-11-12 12:31:24,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:31:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:31:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:31:24,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356780139] [2020-11-12 12:31:24,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:31:24,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:31:24,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634142135] [2020-11-12 12:31:24,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:31:24,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:31:24,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:31:24,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:31:24,945 INFO L87 Difference]: Start difference. First operand 5249 states and 6391 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2020-11-12 12:31:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:31:25,126 INFO L93 Difference]: Finished difference Result 3969 states and 5111 transitions. [2020-11-12 12:31:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:31:25,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2020-11-12 12:31:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:31:25,127 INFO L225 Difference]: With dead ends: 3969 [2020-11-12 12:31:25,127 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:31:25,128 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 [2020-11-12 12:31:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:31:25,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:31:25,128 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) [2020-11-12 12:31:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:31:25,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-11-12 12:31:25,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:31:25,129 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:31:25,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2020-11-12 12:31:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:31:25,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:31:25,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:31:25,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:31:25 BasicIcfg [2020-11-12 12:31:25,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:31:25,139 INFO L168 Benchmark]: Toolchain (without parser) took 30120.36 ms. Allocated memory was 304.1 MB in the beginning and 9.7 GB in the end (delta: 9.4 GB). Free memory was 277.4 MB in the beginning and 8.5 GB in the end (delta: -8.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,140 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 304.1 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:31:25,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.71 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.8 MB in the end (delta: 831.1 kB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.39 ms. Allocated memory is still 304.1 MB. Free memory was 275.8 MB in the beginning and 273.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,149 INFO L168 Benchmark]: Boogie Preprocessor took 33.23 ms. Allocated memory is still 304.1 MB. Free memory was 273.7 MB in the beginning and 271.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,150 INFO L168 Benchmark]: RCFGBuilder took 667.42 ms. Allocated memory is still 304.1 MB. Free memory was 271.6 MB in the beginning and 246.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,151 INFO L168 Benchmark]: TraceAbstraction took 28537.63 ms. Allocated memory was 304.1 MB in the beginning and 9.7 GB in the end (delta: 9.4 GB). Free memory was 246.4 MB in the beginning and 8.5 GB in the end (delta: -8.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2020-11-12 12:31:25,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 304.1 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 808.71 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.8 MB in the end (delta: 831.1 kB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.39 ms. Allocated memory is still 304.1 MB. Free memory was 275.8 MB in the beginning and 273.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.23 ms. Allocated memory is still 304.1 MB. Free memory was 273.7 MB in the beginning and 271.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 667.42 ms. Allocated memory is still 304.1 MB. Free memory was 271.6 MB in the beginning and 246.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28537.63 ms. Allocated memory was 304.1 MB in the beginning and 9.7 GB in the end (delta: 9.4 GB). Free memory was 246.4 MB in the beginning and 8.5 GB in the end (delta: -8.3 GB). Peak memory consumption was 1.2 GB. 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 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 19.4s, HoareTripleCheckerStatistics: 589 SDtfs, 797 SDslu, 2166 SDs, 0 SdLazy, 150 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300908occurred 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: 3.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...