/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:14:18,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:14:18,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:14:18,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:14:18,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:14:18,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:14:18,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:14:18,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:14:18,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:14:18,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:14:18,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:14:18,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:14:18,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:14:18,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:14:18,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:14:18,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:14:18,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:14:18,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:14:18,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:14:18,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:14:18,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:14:18,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:14:18,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:14:18,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:14:18,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:14:18,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:14:18,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:14:18,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:14:18,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:14:18,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:14:18,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:14:18,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:14:18,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:14:18,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:14:18,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:14:18,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:14:18,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:14:18,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:14:18,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:14:18,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:14:18,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:14:18,677 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-Delay.epf [2020-11-12 06:14:18,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:14:18,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:14:18,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:14:18,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:14:18,739 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:14:18,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:14:18,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:14:18,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:14:18,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:14:18,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:14:18,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:14:18,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:14:18,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:14:18,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:14:18,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:14:18,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:14:18,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:14:18,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:14:18,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:14:18,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:14:18,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:14:18,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:14:18,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:14:18,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:14:18,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:14:18,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:14:18,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:14:18,744 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:14:18,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:14:18,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:14:18,745 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:14:19,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:14:19,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:14:19,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:14:19,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:14:19,145 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:14:19,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-11-12 06:14:19,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5501c82/1bf0976d026b428bb93b65373624eb3f/FLAG536d01774 [2020-11-12 06:14:19,936 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:14:19,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-11-12 06:14:19,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5501c82/1bf0976d026b428bb93b65373624eb3f/FLAG536d01774 [2020-11-12 06:14:20,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5501c82/1bf0976d026b428bb93b65373624eb3f [2020-11-12 06:14:20,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:14:20,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:14:20,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:20,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:14:20,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:14:20,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:20,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6dc181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20, skipping insertion in model container [2020-11-12 06:14:20,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:20,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:14:20,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:14:20,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:20,789 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:14:20,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:20,952 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:14:20,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20 WrapperNode [2020-11-12 06:14:20,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:20,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:20,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:14:20,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:14:20,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:20,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:21,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:14:21,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:14:21,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:14:21,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (1/1) ... [2020-11-12 06:14:21,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:14:21,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:14:21,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:14:21,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:14:21,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (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 06:14:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:14:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:14:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:14:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:14:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:14:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:14:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:14:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:14:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:14:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:14:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:14:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:14:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:14:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:14:21,147 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 06:14:21,633 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:14:21,633 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:14:21,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:21 BoogieIcfgContainer [2020-11-12 06:14:21,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:14:21,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:14:21,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:14:21,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:14:21,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:14:20" (1/3) ... [2020-11-12 06:14:21,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb32fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:21, skipping insertion in model container [2020-11-12 06:14:21,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:20" (2/3) ... [2020-11-12 06:14:21,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb32fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:21, skipping insertion in model container [2020-11-12 06:14:21,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:21" (3/3) ... [2020-11-12 06:14:21,644 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-11-12 06:14:21,660 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:14:21,660 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:14:21,664 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:14:21,665 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:14:21,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,719 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,727 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,727 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,728 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,728 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,735 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,741 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,765 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,766 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:21,772 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:14:21,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:14:21,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:14:21,826 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:14:21,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:14:21,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:14:21,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:14:21,827 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:14:21,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:14:21,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:14:21,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 06:14:22,737 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 06:14:23,339 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 598ms [2020-11-12 06:14:23,373 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 06:14:23,392 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 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 06:14:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 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 06:14:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:14:23,493 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:23,494 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] [2020-11-12 06:14:23,494 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:23,501 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-11-12 06:14:23,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:23,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780696583] [2020-11-12 06:14:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:23,966 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 06:14:23,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780696583] [2020-11-12 06:14:23,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:23,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:23,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072912605] [2020-11-12 06:14:23,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:23,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:23,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:23,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:24,002 INFO L87 Difference]: Start difference. First operand has 9849 states, 9113 states have (on average 1.3896631186217492) internal successors, (12664), 9848 states have internal predecessors, (12664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:24,301 INFO L93 Difference]: Finished difference Result 12201 states and 14288 transitions. [2020-11-12 06:14:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 06:14:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:24,341 INFO L225 Difference]: With dead ends: 12201 [2020-11-12 06:14:24,341 INFO L226 Difference]: Without dead ends: 3709 [2020-11-12 06:14:24,343 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 [2020-11-12 06:14:24,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2020-11-12 06:14:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2020-11-12 06:14:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3464 states have (on average 1.4581408775981524) internal successors, (5051), 3708 states have internal predecessors, (5051), 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 06:14:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5051 transitions. [2020-11-12 06:14:24,602 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5051 transitions. Word has length 43 [2020-11-12 06:14:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:24,603 INFO L481 AbstractCegarLoop]: Abstraction has 3709 states and 5051 transitions. [2020-11-12 06:14:24,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:24,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5051 transitions. [2020-11-12 06:14:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:14:24,615 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:24,615 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] [2020-11-12 06:14:24,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:14:24,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:24,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-11-12 06:14:24,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:24,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773636668] [2020-11-12 06:14:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:24,863 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 06:14:24,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773636668] [2020-11-12 06:14:24,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:24,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:24,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823874076] [2020-11-12 06:14:24,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:24,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:24,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:24,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:24,868 INFO L87 Difference]: Start difference. First operand 3709 states and 5051 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:25,253 INFO L93 Difference]: Finished difference Result 4689 states and 6859 transitions. [2020-11-12 06:14:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 06:14:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:25,267 INFO L225 Difference]: With dead ends: 4689 [2020-11-12 06:14:25,267 INFO L226 Difference]: Without dead ends: 2049 [2020-11-12 06:14:25,269 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 06:14:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2020-11-12 06:14:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2049. [2020-11-12 06:14:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1909 states have (on average 1.5123101100052383) internal successors, (2887), 2048 states have internal predecessors, (2887), 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 06:14:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2887 transitions. [2020-11-12 06:14:25,324 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2887 transitions. Word has length 45 [2020-11-12 06:14:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:25,324 INFO L481 AbstractCegarLoop]: Abstraction has 2049 states and 2887 transitions. [2020-11-12 06:14:25,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2887 transitions. [2020-11-12 06:14:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 06:14:25,358 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:25,358 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] [2020-11-12 06:14:25,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:14:25,359 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:25,363 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-11-12 06:14:25,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:25,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482935377] [2020-11-12 06:14:25,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:25,524 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 06:14:25,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482935377] [2020-11-12 06:14:25,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:25,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:25,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798339155] [2020-11-12 06:14:25,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:25,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:25,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:25,527 INFO L87 Difference]: Start difference. First operand 2049 states and 2887 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:25,724 INFO L93 Difference]: Finished difference Result 2617 states and 3986 transitions. [2020-11-12 06:14:25,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:25,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-11-12 06:14:25,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:25,731 INFO L225 Difference]: With dead ends: 2617 [2020-11-12 06:14:25,732 INFO L226 Difference]: Without dead ends: 1185 [2020-11-12 06:14:25,732 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 06:14:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2020-11-12 06:14:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2020-11-12 06:14:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1105 states have (on average 1.555656108597285) internal successors, (1719), 1184 states have internal predecessors, (1719), 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 06:14:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1719 transitions. [2020-11-12 06:14:25,765 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1719 transitions. Word has length 48 [2020-11-12 06:14:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:25,765 INFO L481 AbstractCegarLoop]: Abstraction has 1185 states and 1719 transitions. [2020-11-12 06:14:25,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1719 transitions. [2020-11-12 06:14:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:14:25,769 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:25,769 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 06:14:25,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:14:25,769 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:25,770 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-11-12 06:14:25,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:25,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601307720] [2020-11-12 06:14:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:25,947 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 06:14:25,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601307720] [2020-11-12 06:14:25,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:25,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:25,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137000533] [2020-11-12 06:14:25,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:25,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:25,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:25,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:25,950 INFO L87 Difference]: Start difference. First operand 1185 states and 1719 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:26,130 INFO L93 Difference]: Finished difference Result 865 states and 1399 transitions. [2020-11-12 06:14:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:26,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:14:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:26,131 INFO L225 Difference]: With dead ends: 865 [2020-11-12 06:14:26,131 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:14:26,131 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 06:14:26,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:14:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:14:26,132 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 06:14:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:14:26,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-12 06:14:26,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:26,133 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:14:26,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:26,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:14:26,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:14:26,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:14:26,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:14:26 BasicIcfg [2020-11-12 06:14:26,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:14:26,141 INFO L168 Benchmark]: Toolchain (without parser) took 5900.46 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.3 MB in the beginning and 210.6 MB in the end (delta: 65.7 MB). Peak memory consumption was 128.0 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:26,142 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:14:26,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.88 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 245.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:26,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.06 ms. Allocated memory is still 302.0 MB. Free memory was 244.8 MB in the beginning and 243.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:26,144 INFO L168 Benchmark]: Boogie Preprocessor took 30.53 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:14:26,145 INFO L168 Benchmark]: RCFGBuilder took 594.55 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 262.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:26,146 INFO L168 Benchmark]: TraceAbstraction took 4501.85 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.8 MB in the beginning and 210.6 MB in the end (delta: 51.2 MB). Peak memory consumption was 113.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:14:26,150 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 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 703.88 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 245.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.06 ms. Allocated memory is still 302.0 MB. Free memory was 244.8 MB in the beginning and 243.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.53 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 594.55 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 262.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4501.85 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.8 MB in the beginning and 210.6 MB in the end (delta: 51.2 MB). Peak memory consumption was 113.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 286 SDtfs, 420 SDslu, 1109 SDs, 0 SdLazy, 91 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 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...