/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:00:57,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:00:57,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:00:57,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:00:57,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:00:57,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:00:57,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:00:57,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:00:57,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:00:57,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:00:57,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:00:57,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:00:57,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:00:57,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:00:57,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:00:57,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:00:57,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:00:57,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:00:57,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:00:57,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:00:57,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:00:57,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:00:57,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:00:57,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:00:57,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:00:57,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:00:57,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:00:57,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:00:57,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:00:57,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:00:57,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:00:57,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:00:57,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:00:57,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:00:57,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:00:57,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:00:57,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:00:57,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:00:57,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:00:57,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:00:57,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:00:57,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:00:57,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:00:57,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:00:57,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:00:57,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:00:57,320 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:00:57,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:00:57,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:00:57,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:00:57,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:00:57,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:00:57,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:00:57,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:00:57,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:00:57,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:00:57,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:00:57,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:00:57,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:00:57,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:00:57,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:00:57,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:00:57,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:00:57,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:00:57,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:00:57,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:00:57,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:00:57,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:00:57,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:00:57,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:00:57,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:00:57,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:00:57,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:00:57,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:00:57,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:00:57,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:00:57,665 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix028_pso.opt.i [2020-10-16 12:00:57,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031cf050c/c3fccacc3ade4cd399641162241e381d/FLAGa487f73e4 [2020-10-16 12:00:58,311 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:00:58,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix028_pso.opt.i [2020-10-16 12:00:58,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031cf050c/c3fccacc3ade4cd399641162241e381d/FLAGa487f73e4 [2020-10-16 12:00:58,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031cf050c/c3fccacc3ade4cd399641162241e381d [2020-10-16 12:00:58,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:00:58,628 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:00:58,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:00:58,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:00:58,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:00:58,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:58" (1/1) ... [2020-10-16 12:00:58,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4007d872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:58, skipping insertion in model container [2020-10-16 12:00:58,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:58" (1/1) ... [2020-10-16 12:00:58,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:00:58,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:00:59,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:00:59,260 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:00:59,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:00:59,424 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:00:59,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59 WrapperNode [2020-10-16 12:00:59,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:00:59,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:00:59,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:00:59,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:00:59,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:00:59,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:00:59,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:00:59,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:00:59,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (1/1) ... [2020-10-16 12:00:59,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:00:59,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:00:59,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:00:59,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:00:59,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (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 [2020-10-16 12:00:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:00:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:00:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:00:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:00:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:00:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:00:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:00:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:00:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:00:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:00:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:00:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:00:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:00:59,626 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:01:01,643 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:01:01,643 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:01:01,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:01:01 BoogieIcfgContainer [2020-10-16 12:01:01,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:01:01,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:01:01,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:01:01,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:01:01,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:00:58" (1/3) ... [2020-10-16 12:01:01,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9dc384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:01:01, skipping insertion in model container [2020-10-16 12:01:01,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:59" (2/3) ... [2020-10-16 12:01:01,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9dc384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:01:01, skipping insertion in model container [2020-10-16 12:01:01,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:01:01" (3/3) ... [2020-10-16 12:01:01,656 INFO L111 eAbstractionObserver]: Analyzing ICFG mix028_pso.opt.i [2020-10-16 12:01:01,669 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:01:01,669 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:01:01,677 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:01:01,679 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:01:01,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,713 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,714 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,714 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,714 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,719 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,719 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,719 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,719 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,719 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:01,740 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:01:01,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:01:01,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:01:01,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:01:01,777 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:01:01,777 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:01:01,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:01:01,778 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:01:01,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:01:01,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:01:01,792 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:01:01,793 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 203 flow [2020-10-16 12:01:01,796 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 203 flow [2020-10-16 12:01:01,798 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 203 flow [2020-10-16 12:01:01,844 INFO L129 PetriNetUnfolder]: 2/91 cut-off events. [2020-10-16 12:01:01,845 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:01:01,850 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-16 12:01:01,853 INFO L117 LiptonReduction]: Number of co-enabled transitions 1724 [2020-10-16 12:01:03,294 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2020-10-16 12:01:03,341 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 1] term [2020-10-16 12:01:03,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:01:03,345 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-16 12:01:03,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:01:04,196 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2020-10-16 12:01:05,069 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-16 12:01:05,417 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-16 12:01:06,030 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-16 12:01:06,830 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-16 12:01:07,099 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-16 12:01:08,118 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132 [2020-10-16 12:01:08,409 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-16 12:01:08,741 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-16 12:01:08,859 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-16 12:01:08,868 INFO L132 LiptonReduction]: Checked pairs total: 5052 [2020-10-16 12:01:08,868 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-16 12:01:08,876 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2020-10-16 12:01:08,969 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1152 states. [2020-10-16 12:01:08,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states. [2020-10-16 12:01:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:01:08,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:08,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:01:08,979 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:08,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1006320439, now seen corresponding path program 1 times [2020-10-16 12:01:08,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:08,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056762835] [2020-10-16 12:01:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:09,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056762835] [2020-10-16 12:01:09,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:09,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:09,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597485963] [2020-10-16 12:01:09,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:09,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:09,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:09,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:09,277 INFO L87 Difference]: Start difference. First operand 1152 states. Second operand 3 states. [2020-10-16 12:01:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:09,389 INFO L93 Difference]: Finished difference Result 962 states and 3090 transitions. [2020-10-16 12:01:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:09,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:01:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:09,417 INFO L225 Difference]: With dead ends: 962 [2020-10-16 12:01:09,417 INFO L226 Difference]: Without dead ends: 662 [2020-10-16 12:01:09,419 INFO L677 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 [2020-10-16 12:01:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-10-16 12:01:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2020-10-16 12:01:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-10-16 12:01:09,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2060 transitions. [2020-10-16 12:01:09,530 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2060 transitions. Word has length 5 [2020-10-16 12:01:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:09,530 INFO L481 AbstractCegarLoop]: Abstraction has 662 states and 2060 transitions. [2020-10-16 12:01:09,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2060 transitions. [2020-10-16 12:01:09,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:01:09,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:09,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:09,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:01:09,533 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash 194599318, now seen corresponding path program 1 times [2020-10-16 12:01:09,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:09,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456323629] [2020-10-16 12:01:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:09,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456323629] [2020-10-16 12:01:09,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:09,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:09,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219702892] [2020-10-16 12:01:09,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:09,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:09,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:09,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:09,673 INFO L87 Difference]: Start difference. First operand 662 states and 2060 transitions. Second operand 3 states. [2020-10-16 12:01:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:09,687 INFO L93 Difference]: Finished difference Result 652 states and 2022 transitions. [2020-10-16 12:01:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:09,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:01:09,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:09,695 INFO L225 Difference]: With dead ends: 652 [2020-10-16 12:01:09,695 INFO L226 Difference]: Without dead ends: 652 [2020-10-16 12:01:09,696 INFO L677 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 [2020-10-16 12:01:09,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-10-16 12:01:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2020-10-16 12:01:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-16 12:01:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2022 transitions. [2020-10-16 12:01:09,762 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2022 transitions. Word has length 9 [2020-10-16 12:01:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:09,770 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2022 transitions. [2020-10-16 12:01:09,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2022 transitions. [2020-10-16 12:01:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:01:09,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:09,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:09,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:01:09,775 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:09,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:09,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1737292440, now seen corresponding path program 1 times [2020-10-16 12:01:09,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:09,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090278230] [2020-10-16 12:01:09,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:09,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090278230] [2020-10-16 12:01:09,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:09,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:01:09,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837561715] [2020-10-16 12:01:09,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:01:09,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:09,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:01:09,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:09,878 INFO L87 Difference]: Start difference. First operand 652 states and 2022 transitions. Second operand 4 states. [2020-10-16 12:01:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:09,936 INFO L93 Difference]: Finished difference Result 647 states and 2003 transitions. [2020-10-16 12:01:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:09,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 12:01:09,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:09,945 INFO L225 Difference]: With dead ends: 647 [2020-10-16 12:01:09,945 INFO L226 Difference]: Without dead ends: 647 [2020-10-16 12:01:09,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:09,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-10-16 12:01:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2020-10-16 12:01:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-10-16 12:01:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 2003 transitions. [2020-10-16 12:01:09,993 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 2003 transitions. Word has length 10 [2020-10-16 12:01:09,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:09,994 INFO L481 AbstractCegarLoop]: Abstraction has 647 states and 2003 transitions. [2020-10-16 12:01:09,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:01:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 2003 transitions. [2020-10-16 12:01:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:01:10,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:01:10,002 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,003 INFO L82 PathProgramCache]: Analyzing trace with hash 617690952, now seen corresponding path program 1 times [2020-10-16 12:01:10,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088199734] [2020-10-16 12:01:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088199734] [2020-10-16 12:01:10,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:10,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566740407] [2020-10-16 12:01:10,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:10,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:10,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:10,109 INFO L87 Difference]: Start difference. First operand 647 states and 2003 transitions. Second operand 3 states. [2020-10-16 12:01:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:10,122 INFO L93 Difference]: Finished difference Result 612 states and 1880 transitions. [2020-10-16 12:01:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:10,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:01:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:10,128 INFO L225 Difference]: With dead ends: 612 [2020-10-16 12:01:10,129 INFO L226 Difference]: Without dead ends: 612 [2020-10-16 12:01:10,129 INFO L677 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 [2020-10-16 12:01:10,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-16 12:01:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2020-10-16 12:01:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-10-16 12:01:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1880 transitions. [2020-10-16 12:01:10,152 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1880 transitions. Word has length 11 [2020-10-16 12:01:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:10,152 INFO L481 AbstractCegarLoop]: Abstraction has 612 states and 1880 transitions. [2020-10-16 12:01:10,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1880 transitions. [2020-10-16 12:01:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:01:10,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:01:10,154 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1979990179, now seen corresponding path program 1 times [2020-10-16 12:01:10,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250187983] [2020-10-16 12:01:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250187983] [2020-10-16 12:01:10,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:10,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883052236] [2020-10-16 12:01:10,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:10,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:10,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:10,294 INFO L87 Difference]: Start difference. First operand 612 states and 1880 transitions. Second operand 3 states. [2020-10-16 12:01:10,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:10,336 INFO L93 Difference]: Finished difference Result 606 states and 1856 transitions. [2020-10-16 12:01:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:10,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:01:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:10,342 INFO L225 Difference]: With dead ends: 606 [2020-10-16 12:01:10,342 INFO L226 Difference]: Without dead ends: 606 [2020-10-16 12:01:10,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-16 12:01:10,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2020-10-16 12:01:10,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-16 12:01:10,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 1856 transitions. [2020-10-16 12:01:10,362 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 1856 transitions. Word has length 11 [2020-10-16 12:01:10,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:10,363 INFO L481 AbstractCegarLoop]: Abstraction has 606 states and 1856 transitions. [2020-10-16 12:01:10,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:10,363 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 1856 transitions. [2020-10-16 12:01:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:01:10,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:01:10,365 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1046393021, now seen corresponding path program 1 times [2020-10-16 12:01:10,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874253671] [2020-10-16 12:01:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874253671] [2020-10-16 12:01:10,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:01:10,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459593421] [2020-10-16 12:01:10,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:01:10,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:01:10,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:10,446 INFO L87 Difference]: Start difference. First operand 606 states and 1856 transitions. Second operand 4 states. [2020-10-16 12:01:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:10,524 INFO L93 Difference]: Finished difference Result 618 states and 1886 transitions. [2020-10-16 12:01:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:01:10,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:01:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:10,531 INFO L225 Difference]: With dead ends: 618 [2020-10-16 12:01:10,531 INFO L226 Difference]: Without dead ends: 618 [2020-10-16 12:01:10,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:01:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-16 12:01:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-10-16 12:01:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-10-16 12:01:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1886 transitions. [2020-10-16 12:01:10,552 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1886 transitions. Word has length 12 [2020-10-16 12:01:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:10,553 INFO L481 AbstractCegarLoop]: Abstraction has 618 states and 1886 transitions. [2020-10-16 12:01:10,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:01:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1886 transitions. [2020-10-16 12:01:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:01:10,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:01:10,555 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1950898782, now seen corresponding path program 1 times [2020-10-16 12:01:10,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723820656] [2020-10-16 12:01:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723820656] [2020-10-16 12:01:10,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:01:10,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098190452] [2020-10-16 12:01:10,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:01:10,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:01:10,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:10,641 INFO L87 Difference]: Start difference. First operand 618 states and 1886 transitions. Second operand 4 states. [2020-10-16 12:01:10,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:10,681 INFO L93 Difference]: Finished difference Result 576 states and 1555 transitions. [2020-10-16 12:01:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:01:10,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 12:01:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:10,685 INFO L225 Difference]: With dead ends: 576 [2020-10-16 12:01:10,685 INFO L226 Difference]: Without dead ends: 418 [2020-10-16 12:01:10,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:01:10,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-16 12:01:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-16 12:01:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-16 12:01:10,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1086 transitions. [2020-10-16 12:01:10,698 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1086 transitions. Word has length 14 [2020-10-16 12:01:10,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:10,699 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 1086 transitions. [2020-10-16 12:01:10,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:01:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1086 transitions. [2020-10-16 12:01:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:01:10,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:01:10,701 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,701 INFO L82 PathProgramCache]: Analyzing trace with hash -347834863, now seen corresponding path program 1 times [2020-10-16 12:01:10,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845400662] [2020-10-16 12:01:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845400662] [2020-10-16 12:01:10,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:01:10,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567160181] [2020-10-16 12:01:10,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:01:10,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:01:10,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:01:10,775 INFO L87 Difference]: Start difference. First operand 418 states and 1086 transitions. Second operand 5 states. [2020-10-16 12:01:10,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:10,833 INFO L93 Difference]: Finished difference Result 334 states and 805 transitions. [2020-10-16 12:01:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:01:10,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 12:01:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:10,840 INFO L225 Difference]: With dead ends: 334 [2020-10-16 12:01:10,841 INFO L226 Difference]: Without dead ends: 260 [2020-10-16 12:01:10,841 INFO L677 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 [2020-10-16 12:01:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-16 12:01:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2020-10-16 12:01:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-16 12:01:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 592 transitions. [2020-10-16 12:01:10,849 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 592 transitions. Word has length 15 [2020-10-16 12:01:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:10,849 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 592 transitions. [2020-10-16 12:01:10,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:01:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 592 transitions. [2020-10-16 12:01:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:01:10,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:10,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:10,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:01:10,851 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:10,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:10,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1796356976, now seen corresponding path program 1 times [2020-10-16 12:01:10,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:10,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601798832] [2020-10-16 12:01:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:10,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601798832] [2020-10-16 12:01:10,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:10,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:01:10,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658913211] [2020-10-16 12:01:10,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:01:10,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:10,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:01:10,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:01:10,944 INFO L87 Difference]: Start difference. First operand 252 states and 592 transitions. Second operand 6 states. [2020-10-16 12:01:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:11,004 INFO L93 Difference]: Finished difference Result 229 states and 544 transitions. [2020-10-16 12:01:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:01:11,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 12:01:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:11,007 INFO L225 Difference]: With dead ends: 229 [2020-10-16 12:01:11,007 INFO L226 Difference]: Without dead ends: 215 [2020-10-16 12:01:11,008 INFO L677 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 [2020-10-16 12:01:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-16 12:01:11,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-10-16 12:01:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-16 12:01:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 518 transitions. [2020-10-16 12:01:11,014 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 518 transitions. Word has length 18 [2020-10-16 12:01:11,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:11,014 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 518 transitions. [2020-10-16 12:01:11,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:01:11,015 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 518 transitions. [2020-10-16 12:01:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:01:11,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:11,016 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, 1] [2020-10-16 12:01:11,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:01:11,016 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1620768660, now seen corresponding path program 1 times [2020-10-16 12:01:11,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:11,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349270421] [2020-10-16 12:01:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:11,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349270421] [2020-10-16 12:01:11,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:11,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:01:11,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874222877] [2020-10-16 12:01:11,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:01:11,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:11,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:01:11,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:01:11,160 INFO L87 Difference]: Start difference. First operand 215 states and 518 transitions. Second operand 7 states. [2020-10-16 12:01:11,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:11,315 INFO L93 Difference]: Finished difference Result 283 states and 657 transitions. [2020-10-16 12:01:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:01:11,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:01:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:11,319 INFO L225 Difference]: With dead ends: 283 [2020-10-16 12:01:11,319 INFO L226 Difference]: Without dead ends: 261 [2020-10-16 12:01:11,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:01:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-16 12:01:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 207. [2020-10-16 12:01:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-16 12:01:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 494 transitions. [2020-10-16 12:01:11,362 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 494 transitions. Word has length 22 [2020-10-16 12:01:11,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:11,363 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 494 transitions. [2020-10-16 12:01:11,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:01:11,363 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 494 transitions. [2020-10-16 12:01:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:01:11,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:11,365 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, 1] [2020-10-16 12:01:11,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:01:11,365 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash -238495784, now seen corresponding path program 2 times [2020-10-16 12:01:11,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:11,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799991903] [2020-10-16 12:01:11,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:01:11,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799991903] [2020-10-16 12:01:11,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:11,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:01:11,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244538688] [2020-10-16 12:01:11,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:01:11,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:11,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:01:11,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:01:11,559 INFO L87 Difference]: Start difference. First operand 207 states and 494 transitions. Second operand 8 states. [2020-10-16 12:01:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:11,745 INFO L93 Difference]: Finished difference Result 257 states and 594 transitions. [2020-10-16 12:01:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:01:11,746 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:01:11,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:11,747 INFO L225 Difference]: With dead ends: 257 [2020-10-16 12:01:11,747 INFO L226 Difference]: Without dead ends: 183 [2020-10-16 12:01:11,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:01:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-16 12:01:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-10-16 12:01:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-16 12:01:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 426 transitions. [2020-10-16 12:01:11,753 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 426 transitions. Word has length 22 [2020-10-16 12:01:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:11,753 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 426 transitions. [2020-10-16 12:01:11,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:01:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 426 transitions. [2020-10-16 12:01:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:01:11,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:11,755 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, 1] [2020-10-16 12:01:11,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:01:11,755 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:11,756 INFO L82 PathProgramCache]: Analyzing trace with hash -813627424, now seen corresponding path program 3 times [2020-10-16 12:01:11,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:11,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831054028] [2020-10-16 12:01:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:01:11,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:01:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:01:11,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:01:11,873 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:01:11,873 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:01:11,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:01:11,891 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,891 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,893 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,893 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,894 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,894 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,894 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,894 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,894 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,894 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,895 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,895 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,895 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,896 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,896 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,896 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,896 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,896 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,896 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,896 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,896 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,897 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,900 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,900 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,901 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,901 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,901 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,901 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,901 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,902 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,902 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,902 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,902 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,902 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,903 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,903 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,904 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,904 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,904 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,904 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,904 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,904 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,905 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,905 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,905 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,905 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,906 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,906 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,906 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,906 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,906 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,907 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,907 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,907 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,907 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,907 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,907 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,908 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,908 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,908 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,908 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,909 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,909 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,909 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,909 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,909 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,909 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,910 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,910 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:01:11,910 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:11,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:01:11 BasicIcfg [2020-10-16 12:01:11,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:01:11,972 INFO L168 Benchmark]: Toolchain (without parser) took 13345.32 ms. Allocated memory was 148.9 MB in the beginning and 348.1 MB in the end (delta: 199.2 MB). Free memory was 102.4 MB in the beginning and 206.3 MB in the end (delta: -103.9 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,973 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.33 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 158.5 MB in the end (delta: -56.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 155.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,975 INFO L168 Benchmark]: Boogie Preprocessor took 41.94 ms. Allocated memory is still 205.5 MB. Free memory was 155.3 MB in the beginning and 152.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,976 INFO L168 Benchmark]: RCFGBuilder took 2109.82 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 152.7 MB in the beginning and 157.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,977 INFO L168 Benchmark]: TraceAbstraction took 10322.80 ms. Allocated memory was 245.9 MB in the beginning and 348.1 MB in the end (delta: 102.2 MB). Free memory was 155.9 MB in the beginning and 206.3 MB in the end (delta: -50.4 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:11,981 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.33 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 158.5 MB in the end (delta: -56.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 155.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.94 ms. Allocated memory is still 205.5 MB. Free memory was 155.3 MB in the beginning and 152.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2109.82 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 152.7 MB in the beginning and 157.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10322.80 ms. Allocated memory was 245.9 MB in the beginning and 348.1 MB in the end (delta: 102.2 MB). Free memory was 155.9 MB in the beginning and 206.3 MB in the end (delta: -50.4 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 888 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.0s, 102 PlacesBefore, 38 PlacesAfterwards, 94 TransitionsBefore, 29 TransitionsAfterwards, 1724 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 5052 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p2_EAX = 0; [L702] 0 int __unbuffered_p2_EBX = 0; [L703] 0 _Bool main$tmp_guard0; [L704] 0 _Bool main$tmp_guard1; [L706] 0 int x = 0; [L707] 0 _Bool x$flush_delayed; [L708] 0 int x$mem_tmp; [L709] 0 _Bool x$r_buff0_thd0; [L710] 0 _Bool x$r_buff0_thd1; [L711] 0 _Bool x$r_buff0_thd2; [L712] 0 _Bool x$r_buff0_thd3; [L713] 0 _Bool x$r_buff1_thd0; [L714] 0 _Bool x$r_buff1_thd1; [L715] 0 _Bool x$r_buff1_thd2; [L716] 0 _Bool x$r_buff1_thd3; [L717] 0 _Bool x$read_delayed; [L718] 0 int *x$read_delayed_var; [L719] 0 int x$w_buff0; [L720] 0 _Bool x$w_buff0_used; [L721] 0 int x$w_buff1; [L722] 0 _Bool x$w_buff1_used; [L724] 0 int y = 0; [L726] 0 int z = 0; [L727] 0 _Bool weak$$choice0; [L728] 0 _Bool weak$$choice2; [L812] 0 pthread_t t754; [L813] FCALL, FORK 0 pthread_create(&t754, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L814] 0 pthread_t t755; [L815] FCALL, FORK 0 pthread_create(&t755, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L752] 2 x$w_buff1 = x$w_buff0 [L753] 2 x$w_buff0 = 2 [L754] 2 x$w_buff1_used = x$w_buff0_used [L755] 2 x$w_buff0_used = (_Bool)1 [L7] COND TRUE 2 !expression [L7] 2 __VERIFIER_error() [L757] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L758] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L759] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L760] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L761] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L816] 0 pthread_t t756; [L817] FCALL, FORK 0 pthread_create(&t756, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L781] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L784] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L787] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L790] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L790] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L791] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L791] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L792] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L792] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L793] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L793] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L794] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L794] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L732] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L735] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L767] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L767] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L768] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L768] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L769] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L769] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L770] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L770] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L771] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L771] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L774] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 2 return 0; [L738] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L738] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L738] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L738] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L739] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L739] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L740] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L740] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L741] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L741] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L742] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L745] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L747] 1 return 0; [L797] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 3 return 0; [L819] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L824] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L825] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L826] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L827] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L827] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L830] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L831] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L832] 0 x$flush_delayed = weak$$choice2 [L833] 0 x$mem_tmp = x [L834] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L834] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1 [L834] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L834] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L835] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L835] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L836] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L836] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L836] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L836] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L837] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L837] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L838] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L839] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L840] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L840] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0 [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L840] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L842] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L842] 0 x = x$flush_delayed ? x$mem_tmp : x [L843] 0 x$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 93 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.1s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 253 SDtfs, 286 SDslu, 418 SDs, 0 SdLazy, 239 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 62 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 19942 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 incorrect! Received shutdown request...