/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:43:51,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:43:51,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:43:51,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:43:51,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:43:51,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:43:51,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:43:51,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:43:51,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:43:51,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:43:51,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:43:51,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:43:51,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:43:51,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:43:51,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:43:51,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:43:51,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:43:51,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:43:51,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:43:51,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:43:51,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:43:51,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:43:51,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:43:51,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:43:51,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:43:51,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:43:51,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:43:51,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:43:51,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:43:51,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:43:51,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:43:51,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:43:51,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:43:51,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:43:51,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:43:51,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:43:51,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:43:51,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:43:51,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:43:51,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:43:51,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:43:51,714 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:43:51,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:43:51,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:43:51,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:43:51,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:43:51,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:43:51,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:43:51,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:43:51,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:43:51,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:43:51,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:43:51,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:43:51,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:43:51,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:43:51,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:43:51,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:43:51,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:43:51,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:43:51,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:43:51,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:43:51,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:43:51,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:43:51,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:43:51,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:43:51,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:43:51,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:43:52,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:43:52,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:43:52,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:43:52,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:43:52,193 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:43:52,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-11-09 12:43:52,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/920a78701/5d52a70f1fb14cf0bc058704e53f249d/FLAG6692fec67 [2020-11-09 12:43:53,005 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:43:53,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-11-09 12:43:53,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/920a78701/5d52a70f1fb14cf0bc058704e53f249d/FLAG6692fec67 [2020-11-09 12:43:53,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/920a78701/5d52a70f1fb14cf0bc058704e53f249d [2020-11-09 12:43:53,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:43:53,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:43:53,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:43:53,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:43:53,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:43:53,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775e005b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53, skipping insertion in model container [2020-11-09 12:43:53,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:43:53,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:43:53,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:43:53,670 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:43:53,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:43:53,840 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:43:53,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53 WrapperNode [2020-11-09 12:43:53,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:43:53,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:43:53,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:43:53,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:43:53,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:43:53,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:43:53,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:43:53,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:43:53,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (1/1) ... [2020-11-09 12:43:53,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:43:53,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:43:53,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:43:53,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:43:53,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (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 [2020-11-09 12:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:43:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:43:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:43:54,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:43:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:43:54,008 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:43:54,459 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:43:54,460 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:43:54,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:43:54 BoogieIcfgContainer [2020-11-09 12:43:54,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:43:54,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:43:54,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:43:54,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:43:54,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:43:53" (1/3) ... [2020-11-09 12:43:54,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31c96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:43:54, skipping insertion in model container [2020-11-09 12:43:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:43:53" (2/3) ... [2020-11-09 12:43:54,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31c96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:43:54, skipping insertion in model container [2020-11-09 12:43:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:43:54" (3/3) ... [2020-11-09 12:43:54,471 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-11-09 12:43:54,487 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:43:54,487 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:43:54,491 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:43:54,492 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:43:54,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,543 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,544 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,547 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:43:54,550 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:43:54,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:43:54,584 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:43:54,584 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:43:54,584 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:43:54,584 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:43:54,585 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:43:54,585 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:43:54,585 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:43:54,585 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:43:54,597 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:43:54,599 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:43:54,602 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:43:54,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-11-09 12:43:54,652 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-11-09 12:43:54,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:43:54,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 12:43:54,660 INFO L116 LiptonReduction]: Number of co-enabled transitions 1356 [2020-11-09 12:43:58,603 WARN L194 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 12:43:58,716 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:43:58,947 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 12:43:59,062 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:43:59,087 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-11-09 12:43:59,087 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 12:43:59,103 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 12:43:59,145 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 282 states. [2020-11-09 12:43:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-11-09 12:43:59,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:43:59,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:43:59,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:43:59,158 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:43:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:43:59,165 INFO L82 PathProgramCache]: Analyzing trace with hash 982566713, now seen corresponding path program 1 times [2020-11-09 12:43:59,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:43:59,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512961548] [2020-11-09 12:43:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:43:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:43:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:43:59,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512961548] [2020-11-09 12:43:59,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:43:59,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:43:59,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256705821] [2020-11-09 12:43:59,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:43:59,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:43:59,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:43:59,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:43:59,395 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-11-09 12:43:59,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:43:59,446 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 12:43:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:43:59,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:43:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:43:59,476 INFO L225 Difference]: With dead ends: 282 [2020-11-09 12:43:59,481 INFO L226 Difference]: Without dead ends: 234 [2020-11-09 12:43:59,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:43:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-09 12:43:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-09 12:43:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-09 12:43:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 656 transitions. [2020-11-09 12:43:59,573 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 656 transitions. Word has length 8 [2020-11-09 12:43:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:43:59,574 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 656 transitions. [2020-11-09 12:43:59,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:43:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 656 transitions. [2020-11-09 12:43:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:43:59,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:43:59,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:43:59,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:43:59,583 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:43:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:43:59,584 INFO L82 PathProgramCache]: Analyzing trace with hash 394788315, now seen corresponding path program 1 times [2020-11-09 12:43:59,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:43:59,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726296061] [2020-11-09 12:43:59,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:43:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:43:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:43:59,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726296061] [2020-11-09 12:43:59,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:43:59,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:43:59,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963833858] [2020-11-09 12:43:59,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:43:59,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:43:59,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:43:59,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:43:59,699 INFO L87 Difference]: Start difference. First operand 234 states and 656 transitions. Second operand 3 states. [2020-11-09 12:43:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:43:59,724 INFO L93 Difference]: Finished difference Result 180 states and 440 transitions. [2020-11-09 12:43:59,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:43:59,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 12:43:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:43:59,727 INFO L225 Difference]: With dead ends: 180 [2020-11-09 12:43:59,727 INFO L226 Difference]: Without dead ends: 180 [2020-11-09 12:43:59,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:43:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-09 12:43:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-09 12:43:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-09 12:43:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-09 12:43:59,746 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 9 [2020-11-09 12:43:59,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:43:59,746 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-09 12:43:59,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:43:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-09 12:43:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:43:59,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:43:59,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:43:59,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:43:59,749 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:43:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:43:59,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1410976981, now seen corresponding path program 1 times [2020-11-09 12:43:59,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:43:59,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800674985] [2020-11-09 12:43:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:43:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:43:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:43:59,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800674985] [2020-11-09 12:43:59,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:43:59,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:43:59,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185699891] [2020-11-09 12:43:59,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:43:59,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:43:59,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:43:59,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:43:59,837 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 4 states. [2020-11-09 12:43:59,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:43:59,872 INFO L93 Difference]: Finished difference Result 117 states and 251 transitions. [2020-11-09 12:43:59,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:43:59,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:43:59,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:43:59,874 INFO L225 Difference]: With dead ends: 117 [2020-11-09 12:43:59,875 INFO L226 Difference]: Without dead ends: 117 [2020-11-09 12:43:59,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:43:59,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-09 12:43:59,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-11-09 12:43:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-09 12:43:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 251 transitions. [2020-11-09 12:43:59,884 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 251 transitions. Word has length 11 [2020-11-09 12:43:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:43:59,884 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 251 transitions. [2020-11-09 12:43:59,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:43:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 251 transitions. [2020-11-09 12:43:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:43:59,886 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:43:59,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:43:59,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:43:59,887 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:43:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:43:59,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1834300814, now seen corresponding path program 1 times [2020-11-09 12:43:59,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:43:59,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722003207] [2020-11-09 12:43:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:43:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:44:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:44:00,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722003207] [2020-11-09 12:44:00,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:44:00,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:44:00,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391177687] [2020-11-09 12:44:00,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:44:00,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:44:00,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:44:00,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:44:00,052 INFO L87 Difference]: Start difference. First operand 117 states and 251 transitions. Second operand 5 states. [2020-11-09 12:44:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:44:00,104 INFO L93 Difference]: Finished difference Result 93 states and 203 transitions. [2020-11-09 12:44:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:44:00,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 12:44:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:44:00,106 INFO L225 Difference]: With dead ends: 93 [2020-11-09 12:44:00,106 INFO L226 Difference]: Without dead ends: 93 [2020-11-09 12:44:00,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:44:00,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-09 12:44:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-11-09 12:44:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-09 12:44:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 203 transitions. [2020-11-09 12:44:00,112 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 203 transitions. Word has length 14 [2020-11-09 12:44:00,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:44:00,113 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 203 transitions. [2020-11-09 12:44:00,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:44:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 203 transitions. [2020-11-09 12:44:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:44:00,114 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:44:00,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:44:00,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:44:00,115 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:44:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:44:00,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1160615665, now seen corresponding path program 1 times [2020-11-09 12:44:00,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:44:00,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827937398] [2020-11-09 12:44:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:44:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:44:00,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:44:00,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827937398] [2020-11-09 12:44:00,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:44:00,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:44:00,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331207928] [2020-11-09 12:44:00,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:44:00,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:44:00,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:44:00,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:44:00,195 INFO L87 Difference]: Start difference. First operand 93 states and 203 transitions. Second operand 4 states. [2020-11-09 12:44:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:44:00,228 INFO L93 Difference]: Finished difference Result 111 states and 233 transitions. [2020-11-09 12:44:00,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:44:00,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:44:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:44:00,230 INFO L225 Difference]: With dead ends: 111 [2020-11-09 12:44:00,230 INFO L226 Difference]: Without dead ends: 77 [2020-11-09 12:44:00,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:44:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-09 12:44:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-09 12:44:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-09 12:44:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 159 transitions. [2020-11-09 12:44:00,236 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 159 transitions. Word has length 17 [2020-11-09 12:44:00,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:44:00,236 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 159 transitions. [2020-11-09 12:44:00,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:44:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 159 transitions. [2020-11-09 12:44:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:44:00,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:44:00,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:44:00,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:44:00,238 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:44:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:44:00,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1741772653, now seen corresponding path program 2 times [2020-11-09 12:44:00,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:44:00,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873711821] [2020-11-09 12:44:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:44:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:44:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:44:00,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873711821] [2020-11-09 12:44:00,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:44:00,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:44:00,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498122097] [2020-11-09 12:44:00,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:44:00,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:44:00,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:44:00,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:44:00,321 INFO L87 Difference]: Start difference. First operand 77 states and 159 transitions. Second operand 5 states. [2020-11-09 12:44:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:44:00,372 INFO L93 Difference]: Finished difference Result 109 states and 220 transitions. [2020-11-09 12:44:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:44:00,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 12:44:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:44:00,373 INFO L225 Difference]: With dead ends: 109 [2020-11-09 12:44:00,374 INFO L226 Difference]: Without dead ends: 53 [2020-11-09 12:44:00,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:44:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-09 12:44:00,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-09 12:44:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-09 12:44:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 99 transitions. [2020-11-09 12:44:00,378 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 99 transitions. Word has length 17 [2020-11-09 12:44:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:44:00,378 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 99 transitions. [2020-11-09 12:44:00,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:44:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2020-11-09 12:44:00,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:44:00,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:44:00,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:44:00,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:44:00,380 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:44:00,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:44:00,381 INFO L82 PathProgramCache]: Analyzing trace with hash 477726785, now seen corresponding path program 3 times [2020-11-09 12:44:00,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:44:00,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069600435] [2020-11-09 12:44:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:44:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:44:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:44:00,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069600435] [2020-11-09 12:44:00,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:44:00,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:44:00,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541805416] [2020-11-09 12:44:00,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:44:00,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:44:00,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:44:00,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:44:00,459 INFO L87 Difference]: Start difference. First operand 53 states and 99 transitions. Second operand 5 states. [2020-11-09 12:44:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:44:00,498 INFO L93 Difference]: Finished difference Result 52 states and 98 transitions. [2020-11-09 12:44:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:44:00,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 12:44:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:44:00,499 INFO L225 Difference]: With dead ends: 52 [2020-11-09 12:44:00,499 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:44:00,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:44:00,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:44:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:44:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:44:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:44:00,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:44:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:44:00,501 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:44:00,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:44:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:44:00,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:44:00,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:44:00,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:44:00 BasicIcfg [2020-11-09 12:44:00,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:44:00,511 INFO L168 Benchmark]: Toolchain (without parser) took 7293.41 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 133.0 MB in the beginning and 163.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,515 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 159.4 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:44:00,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.33 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 139.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 159.4 MB. Free memory was 139.1 MB in the beginning and 137.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,520 INFO L168 Benchmark]: Boogie Preprocessor took 28.01 ms. Allocated memory is still 159.4 MB. Free memory was 137.0 MB in the beginning and 135.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,520 INFO L168 Benchmark]: RCFGBuilder took 540.20 ms. Allocated memory is still 159.4 MB. Free memory was 135.4 MB in the beginning and 113.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,523 INFO L168 Benchmark]: TraceAbstraction took 6044.69 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 113.4 MB in the beginning and 163.6 MB in the end (delta: -50.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:44:00,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 159.4 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 616.33 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 139.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 159.4 MB. Free memory was 139.1 MB in the beginning and 137.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.01 ms. Allocated memory is still 159.4 MB. Free memory was 137.0 MB in the beginning and 135.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 540.20 ms. Allocated memory is still 159.4 MB. Free memory was 135.4 MB in the beginning and 113.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6044.69 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 113.4 MB in the beginning and 163.6 MB in the end (delta: -50.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 946 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 74 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.4s, 84 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2462 MoverChecksTotal - 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 111 SDtfs, 79 SDslu, 136 SDs, 0 SdLazy, 58 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2892 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...