/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 00:10:49,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 00:10:49,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 00:10:49,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 00:10:49,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 00:10:49,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 00:10:49,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 00:10:49,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 00:10:49,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 00:10:49,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 00:10:49,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 00:10:49,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 00:10:49,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 00:10:49,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 00:10:49,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 00:10:49,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 00:10:49,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 00:10:49,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 00:10:49,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 00:10:49,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 00:10:49,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 00:10:49,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 00:10:49,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 00:10:49,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 00:10:49,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 00:10:49,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 00:10:49,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 00:10:49,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 00:10:49,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 00:10:49,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 00:10:49,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 00:10:49,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 00:10:49,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 00:10:49,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 00:10:49,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 00:10:49,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 00:10:49,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 00:10:49,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 00:10:49,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 00:10:49,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 00:10:49,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 00:10:49,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-15 00:10:49,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 00:10:49,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 00:10:49,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 00:10:49,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 00:10:49,605 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 00:10:49,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 00:10:49,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 00:10:49,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 00:10:49,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 00:10:49,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 00:10:49,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 00:10:49,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 00:10:49,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 00:10:49,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 00:10:49,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 00:10:49,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 00:10:49,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 00:10:49,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 00:10:49,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 00:10:49,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 00:10:49,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 00:10:49,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:10:49,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 00:10:49,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-15 00:10:49,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 00:10:49,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 00:10:49,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 00:10:49,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 00:10:49,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-15 00:10:49,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-15 00:10:50,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 00:10:50,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 00:10:50,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 00:10:50,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 00:10:50,117 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 00:10:50,118 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-09-15 00:10:50,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85127faf5/d16802c42172483b8c85fd452fa12116/FLAGef9fd0cd3 [2020-09-15 00:10:50,878 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 00:10:50,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-09-15 00:10:50,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85127faf5/d16802c42172483b8c85fd452fa12116/FLAGef9fd0cd3 [2020-09-15 00:10:51,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85127faf5/d16802c42172483b8c85fd452fa12116 [2020-09-15 00:10:51,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 00:10:51,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 00:10:51,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 00:10:51,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 00:10:51,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 00:10:51,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79b83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51, skipping insertion in model container [2020-09-15 00:10:51,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 00:10:51,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 00:10:51,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:10:51,772 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 00:10:51,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:10:51,917 INFO L208 MainTranslator]: Completed translation [2020-09-15 00:10:51,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51 WrapperNode [2020-09-15 00:10:51,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 00:10:51,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 00:10:51,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 00:10:51,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 00:10:51,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 00:10:51,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 00:10:51,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 00:10:51,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 00:10:51,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:51,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:52,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:52,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:52,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... [2020-09-15 00:10:52,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 00:10:52,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 00:10:52,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 00:10:52,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 00:10:52,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:10:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 00:10:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 00:10:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 00:10:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 00:10:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 00:10:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 00:10:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 00:10:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 00:10:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 00:10:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 00:10:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 00:10:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 00:10:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 00:10:52,101 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 00:10:52,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 00:10:52,503 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 00:10:52,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:52 BoogieIcfgContainer [2020-09-15 00:10:52,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 00:10:52,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 00:10:52,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 00:10:52,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 00:10:52,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:10:51" (1/3) ... [2020-09-15 00:10:52,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb1d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:52, skipping insertion in model container [2020-09-15 00:10:52,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:10:51" (2/3) ... [2020-09-15 00:10:52,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bb1d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:10:52, skipping insertion in model container [2020-09-15 00:10:52,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:10:52" (3/3) ... [2020-09-15 00:10:52,518 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2020-09-15 00:10:52,530 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 00:10:52,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-15 00:10:52,541 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 00:10:52,543 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 00:10:52,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,584 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:10:52,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 00:10:52,652 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:10:52,652 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:10:52,652 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:10:52,652 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:10:52,653 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:10:52,653 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:10:52,653 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:10:52,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:10:52,670 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-15 00:10:52,672 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 00:10:52,721 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 00:10:52,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:10:52,729 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:10:52,732 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 00:10:52,754 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 00:10:52,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:10:52,755 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:10:52,757 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 00:10:52,759 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:10:54,490 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-15 00:10:54,775 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-09-15 00:10:54,775 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-09-15 00:10:54,782 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-15 00:10:54,824 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 00:10:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 00:10:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 00:10:54,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:54,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:54,839 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:54,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-09-15 00:10:54,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:54,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136528119] [2020-09-15 00:10:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:55,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136528119] [2020-09-15 00:10:55,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:55,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 00:10:55,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246725322] [2020-09-15 00:10:55,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:10:55,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:55,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:10:55,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,143 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 00:10:55,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:55,210 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-09-15 00:10:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:10:55,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 00:10:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:55,236 INFO L225 Difference]: With dead ends: 294 [2020-09-15 00:10:55,236 INFO L226 Difference]: Without dead ends: 230 [2020-09-15 00:10:55,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-15 00:10:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-09-15 00:10:55,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-15 00:10:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-09-15 00:10:55,336 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-09-15 00:10:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:55,338 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-09-15 00:10:55,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:10:55,338 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-09-15 00:10:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 00:10:55,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:55,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:55,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 00:10:55,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:55,342 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times [2020-09-15 00:10:55,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:55,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826728997] [2020-09-15 00:10:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:55,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826728997] [2020-09-15 00:10:55,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:55,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 00:10:55,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367312308] [2020-09-15 00:10:55,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:10:55,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:55,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:10:55,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,445 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-09-15 00:10:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:55,471 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-09-15 00:10:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:10:55,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-15 00:10:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:55,478 INFO L225 Difference]: With dead ends: 202 [2020-09-15 00:10:55,478 INFO L226 Difference]: Without dead ends: 202 [2020-09-15 00:10:55,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-15 00:10:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-15 00:10:55,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-15 00:10:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-15 00:10:55,514 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-09-15 00:10:55,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:55,515 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-15 00:10:55,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:10:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-15 00:10:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 00:10:55,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:55,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:55,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 00:10:55,521 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:55,521 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-09-15 00:10:55,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:55,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119554780] [2020-09-15 00:10:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:55,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119554780] [2020-09-15 00:10:55,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:55,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:10:55,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700785946] [2020-09-15 00:10:55,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:10:55,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:55,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:10:55,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,659 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-15 00:10:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:55,683 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-09-15 00:10:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:10:55,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 00:10:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:55,686 INFO L225 Difference]: With dead ends: 266 [2020-09-15 00:10:55,686 INFO L226 Difference]: Without dead ends: 140 [2020-09-15 00:10:55,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:10:55,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-15 00:10:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-09-15 00:10:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 00:10:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-09-15 00:10:55,697 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-09-15 00:10:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:55,698 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-09-15 00:10:55,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:10:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-09-15 00:10:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 00:10:55,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:55,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:55,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 00:10:55,700 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:55,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-09-15 00:10:55,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:55,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598433594] [2020-09-15 00:10:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:55,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598433594] [2020-09-15 00:10:55,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:55,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:10:55,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344916746] [2020-09-15 00:10:55,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:10:55,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:55,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:10:55,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:10:55,847 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-09-15 00:10:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:55,918 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-09-15 00:10:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:10:55,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 00:10:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:55,921 INFO L225 Difference]: With dead ends: 165 [2020-09-15 00:10:55,921 INFO L226 Difference]: Without dead ends: 113 [2020-09-15 00:10:55,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:10:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-15 00:10:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-09-15 00:10:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-15 00:10:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-09-15 00:10:55,929 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-09-15 00:10:55,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:55,929 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-09-15 00:10:55,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:10:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-09-15 00:10:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 00:10:55,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:55,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:55,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 00:10:55,931 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:55,932 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-09-15 00:10:55,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:55,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792083746] [2020-09-15 00:10:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:56,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792083746] [2020-09-15 00:10:56,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:56,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:10:56,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927719138] [2020-09-15 00:10:56,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:10:56,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:10:56,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:10:56,025 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-09-15 00:10:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:56,069 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-09-15 00:10:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 00:10:56,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 00:10:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:56,071 INFO L225 Difference]: With dead ends: 111 [2020-09-15 00:10:56,071 INFO L226 Difference]: Without dead ends: 80 [2020-09-15 00:10:56,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:10:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-15 00:10:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-15 00:10:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-15 00:10:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-09-15 00:10:56,077 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-09-15 00:10:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:56,077 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-09-15 00:10:56,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:10:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-09-15 00:10:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 00:10:56,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:56,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:56,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 00:10:56,079 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-09-15 00:10:56,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:56,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605632926] [2020-09-15 00:10:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:56,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605632926] [2020-09-15 00:10:56,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:56,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 00:10:56,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670998445] [2020-09-15 00:10:56,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 00:10:56,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:56,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 00:10:56,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:10:56,195 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-09-15 00:10:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:56,273 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-09-15 00:10:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 00:10:56,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-15 00:10:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:56,278 INFO L225 Difference]: With dead ends: 75 [2020-09-15 00:10:56,279 INFO L226 Difference]: Without dead ends: 66 [2020-09-15 00:10:56,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 00:10:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-15 00:10:56,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-15 00:10:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-15 00:10:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-09-15 00:10:56,287 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-09-15 00:10:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:56,288 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-09-15 00:10:56,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 00:10:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-09-15 00:10:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:10:56,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:56,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:56,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 00:10:56,289 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:56,290 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-09-15 00:10:56,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:56,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820243522] [2020-09-15 00:10:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:56,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820243522] [2020-09-15 00:10:56,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:56,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:10:56,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107009953] [2020-09-15 00:10:56,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:10:56,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:56,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:10:56,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:10:56,344 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-09-15 00:10:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:56,365 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-09-15 00:10:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 00:10:56,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:10:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:56,366 INFO L225 Difference]: With dead ends: 85 [2020-09-15 00:10:56,366 INFO L226 Difference]: Without dead ends: 48 [2020-09-15 00:10:56,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:10:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-15 00:10:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-15 00:10:56,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-15 00:10:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-09-15 00:10:56,369 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-09-15 00:10:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:56,370 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-09-15 00:10:56,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:10:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-09-15 00:10:56,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:10:56,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:56,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:56,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 00:10:56,371 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:56,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:56,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-09-15 00:10:56,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:56,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307746536] [2020-09-15 00:10:56,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:56,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307746536] [2020-09-15 00:10:56,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:56,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:10:56,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553308900] [2020-09-15 00:10:56,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:10:56,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:56,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:10:56,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:10:56,453 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-09-15 00:10:56,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:56,479 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-09-15 00:10:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:10:56,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:10:56,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:56,480 INFO L225 Difference]: With dead ends: 73 [2020-09-15 00:10:56,481 INFO L226 Difference]: Without dead ends: 42 [2020-09-15 00:10:56,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:10:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-15 00:10:56,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-15 00:10:56,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-15 00:10:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-09-15 00:10:56,484 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-09-15 00:10:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:56,485 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-09-15 00:10:56,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:10:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-09-15 00:10:56,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:10:56,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:10:56,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:10:56,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 00:10:56,486 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:10:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:10:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-09-15 00:10:56,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:10:56,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467170922] [2020-09-15 00:10:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:10:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:10:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:10:56,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467170922] [2020-09-15 00:10:56,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:10:56,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:10:56,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703209027] [2020-09-15 00:10:56,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:10:56,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:10:56,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:10:56,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:10:56,551 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-09-15 00:10:56,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:10:56,562 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-09-15 00:10:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 00:10:56,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:10:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:10:56,563 INFO L225 Difference]: With dead ends: 41 [2020-09-15 00:10:56,563 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 00:10:56,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:10:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 00:10:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 00:10:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 00:10:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 00:10:56,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-15 00:10:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:10:56,565 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 00:10:56,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:10:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 00:10:56,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 00:10:56,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 00:10:56,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:10:56 BasicIcfg [2020-09-15 00:10:56,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 00:10:56,574 INFO L168 Benchmark]: Toolchain (without parser) took 5468.47 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 101.7 MB in the beginning and 139.2 MB in the end (delta: -37.5 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,575 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 158.6 MB in the end (delta: -57.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.20 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,577 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,578 INFO L168 Benchmark]: RCFGBuilder took 497.12 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 132.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,579 INFO L168 Benchmark]: TraceAbstraction took 4061.41 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 132.0 MB in the beginning and 139.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. [2020-09-15 00:10:56,583 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 805.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 158.6 MB in the end (delta: -57.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.20 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.12 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 132.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4061.41 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 132.0 MB in the beginning and 139.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 172 SDtfs, 128 SDslu, 202 SDs, 0 SdLazy, 120 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...