/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/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:51:20,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:51:20,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:51:20,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:51:20,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:51:20,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:51:20,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:51:20,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:51:20,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:51:20,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:51:20,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:51:20,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:51:20,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:51:20,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:51:20,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:51:20,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:51:20,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:51:20,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:51:20,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:51:20,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:51:20,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:51:20,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:51:20,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:51:20,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:51:20,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:51:20,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:51:20,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:51:20,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:51:20,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:51:20,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:51:20,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:51:20,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:51:20,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:51:20,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:51:20,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:51:20,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:51:20,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:51:20,296 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:51:20,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:51:20,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:51:20,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:51:20,299 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:51:20,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:51:20,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:51:20,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:51:20,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:51:20,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:51:20,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:51:20,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:51:20,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:51:20,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:51:20,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:51:20,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:51:20,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:51:20,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:51:20,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:51:20,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:51:20,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:51:20,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:51:20,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:51:20,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:51:20,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:51:20,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:51:20,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:51:20,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:51:20,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:51:20,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:51:20,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:51:20,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:51:20,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:51:20,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:51:20,791 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:51:20,792 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-17 00:51:20,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c04f6f1/274ecf14c1444b5280943f3b0e4a61dc/FLAG0da0e9dd1 [2020-09-17 00:51:21,515 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:51:21,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-17 00:51:21,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c04f6f1/274ecf14c1444b5280943f3b0e4a61dc/FLAG0da0e9dd1 [2020-09-17 00:51:21,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c04f6f1/274ecf14c1444b5280943f3b0e4a61dc [2020-09-17 00:51:21,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:51:21,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:51:21,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:51:21,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:51:21,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:51:21,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:51:21" (1/1) ... [2020-09-17 00:51:21,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67abc2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:21, skipping insertion in model container [2020-09-17 00:51:21,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:51:21" (1/1) ... [2020-09-17 00:51:21,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:51:21,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:51:22,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:51:22,481 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:51:22,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:51:22,609 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:51:22,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22 WrapperNode [2020-09-17 00:51:22,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:51:22,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:51:22,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:51:22,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:51:22,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:51:22,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:51:22,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:51:22,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:51:22,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... [2020-09-17 00:51:22,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:51:22,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:51:22,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:51:22,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:51:22,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:51:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:51:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:51:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:51:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:51:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:51:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:51:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:51:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:51:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:51:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:51:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-17 00:51:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-17 00:51:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:51:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:51:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:51:22,813 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:51:23,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:51:23,274 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:51:23,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:51:23 BoogieIcfgContainer [2020-09-17 00:51:23,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:51:23,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:51:23,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:51:23,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:51:23,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:51:21" (1/3) ... [2020-09-17 00:51:23,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c090a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:51:23, skipping insertion in model container [2020-09-17 00:51:23,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:51:22" (2/3) ... [2020-09-17 00:51:23,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c090a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:51:23, skipping insertion in model container [2020-09-17 00:51:23,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:51:23" (3/3) ... [2020-09-17 00:51:23,291 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-09-17 00:51:23,303 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:51:23,303 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:51:23,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:51:23,317 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:51:23,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,362 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,372 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,372 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,372 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,372 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,383 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,383 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:51:23,436 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 00:51:23,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:51:23,464 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:51:23,464 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:51:23,464 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:51:23,465 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:51:23,465 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:51:23,465 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:51:23,465 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:51:23,485 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-17 00:51:23,487 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-17 00:51:23,540 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-17 00:51:23,541 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:51:23,547 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:51:23,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-17 00:51:23,581 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-17 00:51:23,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:51:23,583 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:51:23,585 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-17 00:51:23,587 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:51:25,281 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-17 00:51:25,342 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-17 00:51:25,343 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-17 00:51:25,347 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-17 00:51:25,407 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-17 00:51:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-17 00:51:25,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:51:25,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:25,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:25,423 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:25,431 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-17 00:51:25,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:25,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863334551] [2020-09-17 00:51:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:25,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863334551] [2020-09-17 00:51:25,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:25,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:51:25,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606448960] [2020-09-17 00:51:25,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 00:51:25,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:25,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 00:51:25,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 00:51:25,693 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-17 00:51:25,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:25,757 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-17 00:51:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 00:51:25,761 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-17 00:51:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:25,802 INFO L225 Difference]: With dead ends: 850 [2020-09-17 00:51:25,803 INFO L226 Difference]: Without dead ends: 706 [2020-09-17 00:51:25,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 00:51:25,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-17 00:51:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-17 00:51:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-17 00:51:25,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-17 00:51:25,925 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-17 00:51:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:25,926 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-17 00:51:25,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 00:51:25,927 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-17 00:51:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:51:25,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:25,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:25,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:51:25,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:25,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-17 00:51:25,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:25,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093108663] [2020-09-17 00:51:25,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:26,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093108663] [2020-09-17 00:51:26,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:26,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:51:26,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532570013] [2020-09-17 00:51:26,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:51:26,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:26,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:51:26,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:51:26,101 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-17 00:51:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:26,176 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-17 00:51:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:51:26,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-17 00:51:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:26,182 INFO L225 Difference]: With dead ends: 778 [2020-09-17 00:51:26,183 INFO L226 Difference]: Without dead ends: 634 [2020-09-17 00:51:26,184 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 [2020-09-17 00:51:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-17 00:51:26,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-17 00:51:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-17 00:51:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-17 00:51:26,226 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-17 00:51:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:26,226 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-17 00:51:26,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:51:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-17 00:51:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 00:51:26,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:26,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:26,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:51:26,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:26,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-09-17 00:51:26,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:26,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406985029] [2020-09-17 00:51:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:26,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406985029] [2020-09-17 00:51:26,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:26,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:51:26,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095840142] [2020-09-17 00:51:26,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:51:26,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:26,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:51:26,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:51:26,371 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-17 00:51:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:26,444 INFO L93 Difference]: Finished difference Result 862 states and 2843 transitions. [2020-09-17 00:51:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:51:26,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-17 00:51:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:26,449 INFO L225 Difference]: With dead ends: 862 [2020-09-17 00:51:26,450 INFO L226 Difference]: Without dead ends: 466 [2020-09-17 00:51:26,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 00:51:26,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-17 00:51:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-09-17 00:51:26,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-17 00:51:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1482 transitions. [2020-09-17 00:51:26,468 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1482 transitions. Word has length 12 [2020-09-17 00:51:26,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:26,468 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1482 transitions. [2020-09-17 00:51:26,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:51:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1482 transitions. [2020-09-17 00:51:26,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:51:26,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:26,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:26,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:51:26,471 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:26,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1203540713, now seen corresponding path program 1 times [2020-09-17 00:51:26,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:26,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818373035] [2020-09-17 00:51:26,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:26,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818373035] [2020-09-17 00:51:26,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:26,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:51:26,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119261761] [2020-09-17 00:51:26,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:51:26,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:26,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:51:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:51:26,566 INFO L87 Difference]: Start difference. First operand 466 states and 1482 transitions. Second operand 4 states. [2020-09-17 00:51:26,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:26,593 INFO L93 Difference]: Finished difference Result 502 states and 1548 transitions. [2020-09-17 00:51:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:51:26,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 00:51:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:26,598 INFO L225 Difference]: With dead ends: 502 [2020-09-17 00:51:26,598 INFO L226 Difference]: Without dead ends: 430 [2020-09-17 00:51:26,599 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 [2020-09-17 00:51:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-17 00:51:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-17 00:51:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-17 00:51:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-09-17 00:51:26,615 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-09-17 00:51:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:26,615 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-09-17 00:51:26,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:51:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-09-17 00:51:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:51:26,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:26,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:26,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:51:26,617 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:26,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-09-17 00:51:26,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:26,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736640237] [2020-09-17 00:51:26,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:26,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736640237] [2020-09-17 00:51:26,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:26,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:51:26,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926225796] [2020-09-17 00:51:26,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:51:26,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:26,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:51:26,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:51:26,732 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-09-17 00:51:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:26,792 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-09-17 00:51:26,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:51:26,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-17 00:51:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:26,795 INFO L225 Difference]: With dead ends: 556 [2020-09-17 00:51:26,796 INFO L226 Difference]: Without dead ends: 262 [2020-09-17 00:51:26,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 00:51:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-17 00:51:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-17 00:51:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-17 00:51:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-17 00:51:26,806 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-17 00:51:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:26,807 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-17 00:51:26,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:51:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-17 00:51:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:51:26,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:26,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:26,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:51:26,809 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:26,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:26,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-17 00:51:26,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:26,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021967337] [2020-09-17 00:51:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:26,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021967337] [2020-09-17 00:51:26,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:26,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:51:26,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485539551] [2020-09-17 00:51:26,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:51:26,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:26,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:51:26,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:51:26,953 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-09-17 00:51:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:26,999 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-09-17 00:51:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:51:26,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-17 00:51:26,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,001 INFO L225 Difference]: With dead ends: 319 [2020-09-17 00:51:27,002 INFO L226 Difference]: Without dead ends: 238 [2020-09-17 00:51:27,002 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 [2020-09-17 00:51:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-17 00:51:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-09-17 00:51:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-17 00:51:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-09-17 00:51:27,011 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-09-17 00:51:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,012 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-09-17 00:51:27,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:51:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-09-17 00:51:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:51:27,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:27,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:27,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:51:27,014 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:27,014 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-09-17 00:51:27,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:27,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868820329] [2020-09-17 00:51:27,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:27,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868820329] [2020-09-17 00:51:27,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:27,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:51:27,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168605999] [2020-09-17 00:51:27,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:51:27,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:27,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:51:27,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:51:27,109 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-09-17 00:51:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:27,161 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-09-17 00:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:51:27,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-17 00:51:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,163 INFO L225 Difference]: With dead ends: 247 [2020-09-17 00:51:27,163 INFO L226 Difference]: Without dead ends: 182 [2020-09-17 00:51:27,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:51:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-17 00:51:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-17 00:51:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-17 00:51:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-17 00:51:27,170 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-09-17 00:51:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,171 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-17 00:51:27,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:51:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-17 00:51:27,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 00:51:27,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:27,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:27,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:51:27,172 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:27,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:27,173 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-17 00:51:27,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:27,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272612302] [2020-09-17 00:51:27,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:27,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272612302] [2020-09-17 00:51:27,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:27,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 00:51:27,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982229449] [2020-09-17 00:51:27,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:51:27,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:27,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:51:27,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:51:27,284 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-17 00:51:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:27,371 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-17 00:51:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:51:27,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-17 00:51:27,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,374 INFO L225 Difference]: With dead ends: 165 [2020-09-17 00:51:27,374 INFO L226 Difference]: Without dead ends: 132 [2020-09-17 00:51:27,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:51:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-17 00:51:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-17 00:51:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-17 00:51:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-17 00:51:27,381 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-17 00:51:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,382 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-17 00:51:27,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:51:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-17 00:51:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 00:51:27,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:27,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:27,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 00:51:27,383 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:27,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:27,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-17 00:51:27,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:27,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611582176] [2020-09-17 00:51:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:27,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611582176] [2020-09-17 00:51:27,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:27,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-17 00:51:27,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843718158] [2020-09-17 00:51:27,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 00:51:27,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:27,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 00:51:27,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:51:27,489 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-17 00:51:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:27,560 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-17 00:51:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 00:51:27,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 00:51:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,562 INFO L225 Difference]: With dead ends: 121 [2020-09-17 00:51:27,562 INFO L226 Difference]: Without dead ends: 112 [2020-09-17 00:51:27,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-17 00:51:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-17 00:51:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-17 00:51:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-17 00:51:27,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-17 00:51:27,567 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-17 00:51:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,567 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-17 00:51:27,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 00:51:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-17 00:51:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 00:51:27,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:27,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:27,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 00:51:27,569 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:27,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:27,569 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-17 00:51:27,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:27,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178083900] [2020-09-17 00:51:27,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:27,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178083900] [2020-09-17 00:51:27,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:27,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:51:27,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234033606] [2020-09-17 00:51:27,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:51:27,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:27,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:51:27,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:51:27,642 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-17 00:51:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:27,678 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-17 00:51:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:51:27,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-17 00:51:27,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,679 INFO L225 Difference]: With dead ends: 146 [2020-09-17 00:51:27,680 INFO L226 Difference]: Without dead ends: 52 [2020-09-17 00:51:27,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:51:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-17 00:51:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-17 00:51:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-17 00:51:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-17 00:51:27,683 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-17 00:51:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,683 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-17 00:51:27,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:51:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-17 00:51:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 00:51:27,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:51:27,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:51:27,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 00:51:27,685 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:51:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:51:27,685 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-17 00:51:27,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:51:27,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026380259] [2020-09-17 00:51:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:51:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:51:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:51:27,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026380259] [2020-09-17 00:51:27,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:51:27,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:51:27,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149308572] [2020-09-17 00:51:27,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:51:27,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:51:27,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:51:27,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:51:27,759 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-17 00:51:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:51:27,784 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-17 00:51:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:51:27,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-17 00:51:27,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:51:27,785 INFO L225 Difference]: With dead ends: 51 [2020-09-17 00:51:27,785 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:51:27,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:51:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:51:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:51:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:51:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:51:27,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-17 00:51:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:51:27,787 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:51:27,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:51:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:51:27,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:51:27,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 00:51:27,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:51:27 BasicIcfg [2020-09-17 00:51:27,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:51:27,795 INFO L168 Benchmark]: Toolchain (without parser) took 6004.62 ms. Allocated memory was 141.0 MB in the beginning and 282.1 MB in the end (delta: 141.0 MB). Free memory was 103.1 MB in the beginning and 168.7 MB in the end (delta: -65.6 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,796 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.45 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 102.4 MB in the beginning and 163.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.50 ms. Allocated memory is still 206.6 MB. Free memory was 163.8 MB in the beginning and 161.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,798 INFO L168 Benchmark]: Boogie Preprocessor took 35.04 ms. Allocated memory is still 206.6 MB. Free memory was 161.8 MB in the beginning and 160.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,799 INFO L168 Benchmark]: RCFGBuilder took 565.07 ms. Allocated memory is still 206.6 MB. Free memory was 160.5 MB in the beginning and 135.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,800 INFO L168 Benchmark]: TraceAbstraction took 4510.80 ms. Allocated memory was 206.6 MB in the beginning and 282.1 MB in the end (delta: 75.5 MB). Free memory was 135.3 MB in the beginning and 168.7 MB in the end (delta: -33.4 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. [2020-09-17 00:51:27,804 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 813.45 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 102.4 MB in the beginning and 163.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.50 ms. Allocated memory is still 206.6 MB. Free memory was 163.8 MB in the beginning and 161.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.04 ms. Allocated memory is still 206.6 MB. Free memory was 161.8 MB in the beginning and 160.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 565.07 ms. Allocated memory is still 206.6 MB. Free memory was 160.5 MB in the beginning and 135.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4510.80 ms. Allocated memory was 206.6 MB in the beginning and 282.1 MB in the end (delta: 75.5 MB). Free memory was 135.3 MB in the beginning and 168.7 MB in the end (delta: -33.4 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...