/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:48:22,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:48:22,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:48:22,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:48:22,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:48:22,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:48:22,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:48:22,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:48:22,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:48:22,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:48:22,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:48:22,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:48:22,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:48:22,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:48:22,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:48:22,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:48:22,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:48:22,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:48:22,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:48:22,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:48:22,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:48:22,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:48:22,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:48:22,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:48:22,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:48:22,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:48:22,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:48:22,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:48:22,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:48:22,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:48:22,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:48:22,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:48:22,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:48:22,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:48:22,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:48:22,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:48:22,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:48:22,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:48:22,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:48:22,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:48:22,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:48:22,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:48:22,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:48:22,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:48:22,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:48:22,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:48:22,669 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:48:22,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:48:22,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:48:22,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:48:22,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:48:22,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:48:22,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:48:22,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:48:22,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:48:22,672 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:48:22,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:48:22,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:48:22,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:48:22,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:48:22,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:48:22,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:48:22,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:48:22,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:48:22,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:48:22,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:48:22,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:48:22,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:48:22,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:48:22,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:48:22,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:48:22,676 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:48:22,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:48:23,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:48:23,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:48:23,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:48:23,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:48:23,119 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:48:23,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-01-20 14:48:23,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a6b95d7/c6ddc877dfbc40d3b10cb3cdb693e699/FLAGd2a708948 [2021-01-20 14:48:24,010 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:48:24,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-01-20 14:48:24,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a6b95d7/c6ddc877dfbc40d3b10cb3cdb693e699/FLAGd2a708948 [2021-01-20 14:48:24,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a6b95d7/c6ddc877dfbc40d3b10cb3cdb693e699 [2021-01-20 14:48:24,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:48:24,210 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:48:24,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:24,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:48:24,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:48:24,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:24,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7dbcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24, skipping insertion in model container [2021-01-20 14:48:24,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:24,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:48:24,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:48:24,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:24,717 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:48:24,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:24,980 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:48:24,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24 WrapperNode [2021-01-20 14:48:24,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:24,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:24,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:48:24,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:48:24,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:25,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:48:25,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:48:25,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:48:25,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (1/1) ... [2021-01-20 14:48:25,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:48:25,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:48:25,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:48:25,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:48:25,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (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 [2021-01-20 14:48:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:48:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:48:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:48:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:48:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:48:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:48:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:48:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:48:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:48:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:48:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 14:48:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 14:48:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:48:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:48:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:48:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:48:25,241 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:48:25,738 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:48:25,739 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:48:25,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:25 BoogieIcfgContainer [2021-01-20 14:48:25,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:48:25,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:48:25,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:48:25,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:48:25,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:48:24" (1/3) ... [2021-01-20 14:48:25,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6488ec77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:25, skipping insertion in model container [2021-01-20 14:48:25,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:24" (2/3) ... [2021-01-20 14:48:25,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6488ec77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:25, skipping insertion in model container [2021-01-20 14:48:25,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:25" (3/3) ... [2021-01-20 14:48:25,751 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-01-20 14:48:25,767 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:48:25,768 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:48:25,772 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:48:25,773 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:48:25,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,812 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,812 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,815 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,815 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,818 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,818 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,819 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,819 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,832 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,833 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:25,841 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:48:25,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 14:48:25,877 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:48:25,878 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:48:25,878 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:48:25,878 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:48:25,878 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:48:25,878 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:48:25,878 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:48:25,878 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:48:25,890 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2021-01-20 14:48:36,569 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2021-01-20 14:48:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2021-01-20 14:48:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:48:37,020 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:37,022 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:37,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2021-01-20 14:48:37,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:37,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165958068] [2021-01-20 14:48:37,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:37,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165958068] [2021-01-20 14:48:37,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:37,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:37,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496245881] [2021-01-20 14:48:37,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:37,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:37,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:37,804 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:40,093 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2021-01-20 14:48:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:40,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 14:48:40,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:40,490 INFO L225 Difference]: With dead ends: 68929 [2021-01-20 14:48:40,490 INFO L226 Difference]: Without dead ends: 23821 [2021-01-20 14:48:40,492 INFO L769 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 [2021-01-20 14:48:40,492 INFO L78 Accepts]: Start accepts. Automaton has 23821 states. Word has length 47 [2021-01-20 14:48:40,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:40,494 INFO L481 AbstractCegarLoop]: Abstraction has 23821 states. [2021-01-20 14:48:40,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:40,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23821 states. [2021-01-20 14:48:40,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:48:40,568 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:40,569 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:40,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:48:40,569 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:40,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:40,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1767056824, now seen corresponding path program 1 times [2021-01-20 14:48:40,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:40,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101610178] [2021-01-20 14:48:40,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:40,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101610178] [2021-01-20 14:48:40,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:40,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:40,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826769778] [2021-01-20 14:48:40,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:40,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:40,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:40,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:40,732 INFO L87 Difference]: Start difference. First operand 23821 states. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:41,458 INFO L93 Difference]: Finished difference Result 25981 states and 108641 transitions. [2021-01-20 14:48:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 14:48:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:41,573 INFO L225 Difference]: With dead ends: 25981 [2021-01-20 14:48:41,573 INFO L226 Difference]: Without dead ends: 20941 [2021-01-20 14:48:41,574 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:41,574 INFO L78 Accepts]: Start accepts. Automaton has 20941 states. Word has length 49 [2021-01-20 14:48:41,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:41,575 INFO L481 AbstractCegarLoop]: Abstraction has 20941 states. [2021-01-20 14:48:41,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 20941 states. [2021-01-20 14:48:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:48:41,638 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:41,638 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:41,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:48:41,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:41,640 INFO L82 PathProgramCache]: Analyzing trace with hash 698601657, now seen corresponding path program 1 times [2021-01-20 14:48:41,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:41,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567189726] [2021-01-20 14:48:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:41,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567189726] [2021-01-20 14:48:41,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:41,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:41,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260916760] [2021-01-20 14:48:41,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:41,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:41,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:41,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:41,881 INFO L87 Difference]: Start difference. First operand 20941 states. 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) [2021-01-20 14:48:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:42,419 INFO L93 Difference]: Finished difference Result 28581 states and 118471 transitions. [2021-01-20 14:48:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:42,420 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 [2021-01-20 14:48:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:42,565 INFO L225 Difference]: With dead ends: 28581 [2021-01-20 14:48:42,566 INFO L226 Difference]: Without dead ends: 15321 [2021-01-20 14:48:42,566 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:48:42,567 INFO L78 Accepts]: Start accepts. Automaton has 15321 states. Word has length 51 [2021-01-20 14:48:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:42,567 INFO L481 AbstractCegarLoop]: Abstraction has 15321 states. [2021-01-20 14:48:42,567 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) [2021-01-20 14:48:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15321 states. [2021-01-20 14:48:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:48:42,926 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:42,926 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:42,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:48:42,927 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:42,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:42,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1362316858, now seen corresponding path program 1 times [2021-01-20 14:48:42,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:42,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947744250] [2021-01-20 14:48:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:43,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947744250] [2021-01-20 14:48:43,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:43,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:43,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806893409] [2021-01-20 14:48:43,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:43,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:43,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:43,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:43,169 INFO L87 Difference]: Start difference. First operand 15321 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:43,515 INFO L93 Difference]: Finished difference Result 20601 states and 83663 transitions. [2021-01-20 14:48:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:43,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 14:48:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:43,555 INFO L225 Difference]: With dead ends: 20601 [2021-01-20 14:48:43,556 INFO L226 Difference]: Without dead ends: 10701 [2021-01-20 14:48:43,556 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:48:43,557 INFO L78 Accepts]: Start accepts. Automaton has 10701 states. Word has length 53 [2021-01-20 14:48:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:43,557 INFO L481 AbstractCegarLoop]: Abstraction has 10701 states. [2021-01-20 14:48:43,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 10701 states. [2021-01-20 14:48:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:48:43,589 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:43,589 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:43,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:48:43,589 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:43,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:43,590 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2021-01-20 14:48:43,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:43,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806521711] [2021-01-20 14:48:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:43,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806521711] [2021-01-20 14:48:43,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:43,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:43,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610047829] [2021-01-20 14:48:43,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:43,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:43,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:43,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:43,739 INFO L87 Difference]: Start difference. First operand 10701 states. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-01-20 14:48:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:44,078 INFO L93 Difference]: Finished difference Result 14445 states and 57641 transitions. [2021-01-20 14:48:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:44,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-01-20 14:48:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:44,135 INFO L225 Difference]: With dead ends: 14445 [2021-01-20 14:48:44,135 INFO L226 Difference]: Without dead ends: 10349 [2021-01-20 14:48:44,136 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:44,136 INFO L78 Accepts]: Start accepts. Automaton has 10349 states. Word has length 55 [2021-01-20 14:48:44,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:44,136 INFO L481 AbstractCegarLoop]: Abstraction has 10349 states. [2021-01-20 14:48:44,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-01-20 14:48:44,137 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states. [2021-01-20 14:48:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 14:48:44,165 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:44,165 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:44,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:48:44,165 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:44,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:44,166 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2021-01-20 14:48:44,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:44,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361981494] [2021-01-20 14:48:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:44,512 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2021-01-20 14:48:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:44,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361981494] [2021-01-20 14:48:44,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:44,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:44,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186377439] [2021-01-20 14:48:44,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:44,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:44,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:44,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:44,554 INFO L87 Difference]: Start difference. First operand 10349 states. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:44,896 INFO L93 Difference]: Finished difference Result 12701 states and 50085 transitions. [2021-01-20 14:48:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:44,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 14:48:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:44,927 INFO L225 Difference]: With dead ends: 12701 [2021-01-20 14:48:44,928 INFO L226 Difference]: Without dead ends: 8861 [2021-01-20 14:48:44,928 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:48:44,928 INFO L78 Accepts]: Start accepts. Automaton has 8861 states. Word has length 56 [2021-01-20 14:48:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:44,929 INFO L481 AbstractCegarLoop]: Abstraction has 8861 states. [2021-01-20 14:48:44,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states. [2021-01-20 14:48:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 14:48:44,952 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:44,952 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:44,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:48:44,952 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:44,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2021-01-20 14:48:44,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:44,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541317850] [2021-01-20 14:48:44,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:45,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541317850] [2021-01-20 14:48:45,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:45,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:48:45,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711250609] [2021-01-20 14:48:45,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:48:45,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:45,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:48:45,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:48:45,085 INFO L87 Difference]: Start difference. First operand 8861 states. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:45,382 INFO L93 Difference]: Finished difference Result 8960 states and 34343 transitions. [2021-01-20 14:48:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:48:45,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-20 14:48:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:45,397 INFO L225 Difference]: With dead ends: 8960 [2021-01-20 14:48:45,397 INFO L226 Difference]: Without dead ends: 6080 [2021-01-20 14:48:45,397 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:48:45,398 INFO L78 Accepts]: Start accepts. Automaton has 6080 states. Word has length 57 [2021-01-20 14:48:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:45,398 INFO L481 AbstractCegarLoop]: Abstraction has 6080 states. [2021-01-20 14:48:45,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states. [2021-01-20 14:48:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 14:48:45,413 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:45,413 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:45,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:48:45,413 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:45,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:45,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2021-01-20 14:48:45,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:45,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131793556] [2021-01-20 14:48:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:45,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:45,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131793556] [2021-01-20 14:48:45,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:45,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 14:48:45,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866246210] [2021-01-20 14:48:45,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 14:48:45,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:45,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 14:48:45,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 14:48:45,562 INFO L87 Difference]: Start difference. First operand 6080 states. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:45,882 INFO L93 Difference]: Finished difference Result 4838 states and 17777 transitions. [2021-01-20 14:48:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-20 14:48:45,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-01-20 14:48:45,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:45,892 INFO L225 Difference]: With dead ends: 4838 [2021-01-20 14:48:45,892 INFO L226 Difference]: Without dead ends: 3434 [2021-01-20 14:48:45,892 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-01-20 14:48:45,893 INFO L78 Accepts]: Start accepts. Automaton has 3434 states. Word has length 59 [2021-01-20 14:48:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:45,893 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states. [2021-01-20 14:48:45,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states. [2021-01-20 14:48:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 14:48:45,902 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:45,902 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:45,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:48:45,902 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:45,905 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2021-01-20 14:48:45,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:45,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269965611] [2021-01-20 14:48:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:46,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269965611] [2021-01-20 14:48:46,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:46,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:46,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021280316] [2021-01-20 14:48:46,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:46,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:46,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:46,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:46,254 INFO L87 Difference]: Start difference. First operand 3434 states. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-01-20 14:48:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:46,413 INFO L93 Difference]: Finished difference Result 5059 states and 18255 transitions. [2021-01-20 14:48:46,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:46,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-01-20 14:48:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:46,419 INFO L225 Difference]: With dead ends: 5059 [2021-01-20 14:48:46,419 INFO L226 Difference]: Without dead ends: 2282 [2021-01-20 14:48:46,419 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:46,419 INFO L78 Accepts]: Start accepts. Automaton has 2282 states. Word has length 61 [2021-01-20 14:48:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:46,420 INFO L481 AbstractCegarLoop]: Abstraction has 2282 states. [2021-01-20 14:48:46,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-01-20 14:48:46,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states. [2021-01-20 14:48:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 14:48:46,423 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:46,423 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:46,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:48:46,424 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:46,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2021-01-20 14:48:46,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:46,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271175792] [2021-01-20 14:48:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:46,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271175792] [2021-01-20 14:48:46,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:46,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:46,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288949566] [2021-01-20 14:48:46,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:46,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:46,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:46,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:46,538 INFO L87 Difference]: Start difference. First operand 2282 states. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-01-20 14:48:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:46,647 INFO L93 Difference]: Finished difference Result 1958 states and 6906 transitions. [2021-01-20 14:48:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-01-20 14:48:46,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:46,648 INFO L225 Difference]: With dead ends: 1958 [2021-01-20 14:48:46,648 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:48:46,648 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:46,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 61 [2021-01-20 14:48:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:46,649 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:48:46,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-01-20 14:48:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:48:46,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:48:46,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:48:46,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:48:46 BasicIcfg [2021-01-20 14:48:46,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:48:46,657 INFO L168 Benchmark]: Toolchain (without parser) took 22447.00 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 275.7 MB in the beginning and 5.6 GB in the end (delta: -5.3 GB). Peak memory consumption was 683.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:46,657 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:46,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.82 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 275.4 MB in the end (delta: -7.8 kB). Peak memory consumption was 28.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:46,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.16 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:46,659 INFO L168 Benchmark]: Boogie Preprocessor took 65.49 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:46,660 INFO L168 Benchmark]: RCFGBuilder took 591.64 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 247.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:46,661 INFO L168 Benchmark]: TraceAbstraction took 20911.47 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 247.1 MB in the beginning and 5.6 GB in the end (delta: -5.4 GB). Peak memory consumption was 655.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:46,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 768.82 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 275.4 MB in the end (delta: -7.8 kB). Peak memory consumption was 28.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 98.16 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 65.49 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 591.64 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 247.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20911.47 ms. Allocated memory was 302.0 MB in the beginning and 6.3 GB in the end (delta: 6.0 GB). Free memory was 247.1 MB in the beginning and 5.6 GB in the end (delta: -5.4 GB). Peak memory consumption was 655.0 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 1097 SDtfs, 1755 SDslu, 3742 SDs, 0 SdLazy, 478 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54313occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...