/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/safe005_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:07:57,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:07:57,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:07:57,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:07:57,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:07:57,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:07:57,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:07:57,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:07:57,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:07:57,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:07:57,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:07:57,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:07:57,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:07:57,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:07:57,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:07:57,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:07:57,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:07:57,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:07:57,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:07:57,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:07:57,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:07:57,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:07:57,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:07:57,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:07:57,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:07:57,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:07:57,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:07:57,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:07:57,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:07:57,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:07:57,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:07:57,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:07:57,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:07:57,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:07:57,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:07:57,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:07:57,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:07:57,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:07:57,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:07:57,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:07:57,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:07:57,660 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 12:07:57,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:07:57,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:07:57,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:07:57,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:07:57,698 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:07:57,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:07:57,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:07:57,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:07:57,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:07:57,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:07:57,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:07:57,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:07:57,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:07:57,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:07:57,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:07:57,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:07:57,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:07:57,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:07:57,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:07:57,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:07:57,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:07:57,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:07:57,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:07:57,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:07:57,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:07:58,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:07:58,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:07:58,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:07:58,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:07:58,014 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_rmo.oepc.i [2020-10-16 12:07:58,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b409c12a6/abb1cc829a754ae28d0944e315cd5bea/FLAGa955fc21f [2020-10-16 12:07:58,601 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:07:58,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe005_rmo.oepc.i [2020-10-16 12:07:58,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b409c12a6/abb1cc829a754ae28d0944e315cd5bea/FLAGa955fc21f [2020-10-16 12:07:58,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b409c12a6/abb1cc829a754ae28d0944e315cd5bea [2020-10-16 12:07:58,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:07:58,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:07:58,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:07:58,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:07:58,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:07:58,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:58" (1/1) ... [2020-10-16 12:07:58,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6f427d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:58, skipping insertion in model container [2020-10-16 12:07:58,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:58" (1/1) ... [2020-10-16 12:07:58,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:07:58,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:07:59,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:07:59,653 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:07:59,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:07:59,800 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:07:59,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59 WrapperNode [2020-10-16 12:07:59,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:07:59,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:07:59,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:07:59,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:07:59,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:07:59,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:07:59,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:07:59,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:07:59,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (1/1) ... [2020-10-16 12:07:59,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:07:59,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:07:59,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:07:59,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:07:59,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (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 12:07:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:07:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:07:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:07:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:07:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:07:59,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:07:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:07:59,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:07:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:07:59,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:07:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:07:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:07:59,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:08:00,001 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 12:08:02,189 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:08:02,189 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:08:02,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:02 BoogieIcfgContainer [2020-10-16 12:08:02,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:08:02,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:08:02,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:08:02,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:08:02,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:07:58" (1/3) ... [2020-10-16 12:08:02,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2144d0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:02, skipping insertion in model container [2020-10-16 12:08:02,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:59" (2/3) ... [2020-10-16 12:08:02,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2144d0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:02, skipping insertion in model container [2020-10-16 12:08:02,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:02" (3/3) ... [2020-10-16 12:08:02,200 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_rmo.oepc.i [2020-10-16 12:08:02,212 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:08:02,213 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:08:02,221 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:08:02,222 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:08:02,252 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,260 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,260 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,269 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,269 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,275 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:08:02,291 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:08:02,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:08:02,328 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:08:02,328 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:08:02,328 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:08:02,328 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:08:02,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:08:02,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:08:02,329 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:08:02,329 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:08:02,343 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:08:02,343 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 199 flow [2020-10-16 12:08:02,346 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 199 flow [2020-10-16 12:08:02,348 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-16 12:08:02,395 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-16 12:08:02,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:08:02,401 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-16 12:08:02,404 INFO L117 LiptonReduction]: Number of co-enabled transitions 1544 [2020-10-16 12:08:02,855 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:08:02,985 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 12:08:05,021 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-16 12:08:05,168 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-16 12:08:05,181 INFO L132 LiptonReduction]: Checked pairs total: 4006 [2020-10-16 12:08:05,182 INFO L134 LiptonReduction]: Total number of compositions: 79 [2020-10-16 12:08:05,192 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-16 12:08:05,332 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 658 states. [2020-10-16 12:08:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states. [2020-10-16 12:08:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:08:05,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:05,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:08:05,365 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 12:08:05,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:05,379 INFO L82 PathProgramCache]: Analyzing trace with hash 914642709, now seen corresponding path program 1 times [2020-10-16 12:08:05,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:05,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075751821] [2020-10-16 12:08:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:05,816 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 12:08:05,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075751821] [2020-10-16 12:08:05,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:05,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:08:05,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190488922] [2020-10-16 12:08:05,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:05,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:05,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:05,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:05,846 INFO L87 Difference]: Start difference. First operand 658 states. Second operand 3 states. [2020-10-16 12:08:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:05,965 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-16 12:08:05,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:05,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:08:05,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:05,996 INFO L225 Difference]: With dead ends: 550 [2020-10-16 12:08:05,997 INFO L226 Difference]: Without dead ends: 450 [2020-10-16 12:08:05,998 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 12:08:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-16 12:08:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-16 12:08:06,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-16 12:08:06,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-16 12:08:06,100 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 5 [2020-10-16 12:08:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,100 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-16 12:08:06,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-16 12:08:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:08:06,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:08:06,105 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 12:08:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,105 INFO L82 PathProgramCache]: Analyzing trace with hash 577618716, now seen corresponding path program 1 times [2020-10-16 12:08:06,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732889737] [2020-10-16 12:08:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,164 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 12:08:06,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732889737] [2020-10-16 12:08:06,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:08:06,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765671499] [2020-10-16 12:08:06,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:06,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:06,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:06,168 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-16 12:08:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,180 INFO L93 Difference]: Finished difference Result 430 states and 1287 transitions. [2020-10-16 12:08:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:06,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:08:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,185 INFO L225 Difference]: With dead ends: 430 [2020-10-16 12:08:06,185 INFO L226 Difference]: Without dead ends: 430 [2020-10-16 12:08:06,186 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 12:08:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-16 12:08:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-16 12:08:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-16 12:08:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1287 transitions. [2020-10-16 12:08:06,209 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1287 transitions. Word has length 9 [2020-10-16 12:08:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,210 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 1287 transitions. [2020-10-16 12:08:06,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1287 transitions. [2020-10-16 12:08:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:08:06,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:08:06,213 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 12:08:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash 726263662, now seen corresponding path program 1 times [2020-10-16 12:08:06,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376475496] [2020-10-16 12:08:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,278 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 12:08:06,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376475496] [2020-10-16 12:08:06,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:06,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803231980] [2020-10-16 12:08:06,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:06,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:06,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:06,281 INFO L87 Difference]: Start difference. First operand 430 states and 1287 transitions. Second operand 4 states. [2020-10-16 12:08:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,318 INFO L93 Difference]: Finished difference Result 638 states and 1887 transitions. [2020-10-16 12:08:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:08:06,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 12:08:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,322 INFO L225 Difference]: With dead ends: 638 [2020-10-16 12:08:06,322 INFO L226 Difference]: Without dead ends: 398 [2020-10-16 12:08:06,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:08:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-10-16 12:08:06,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2020-10-16 12:08:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-10-16 12:08:06,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1169 transitions. [2020-10-16 12:08:06,338 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1169 transitions. Word has length 10 [2020-10-16 12:08:06,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,338 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 1169 transitions. [2020-10-16 12:08:06,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:06,338 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1169 transitions. [2020-10-16 12:08:06,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:08:06,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:08:06,341 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 12:08:06,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1491369423, now seen corresponding path program 1 times [2020-10-16 12:08:06,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599501658] [2020-10-16 12:08:06,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,404 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 12:08:06,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599501658] [2020-10-16 12:08:06,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:08:06,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240421923] [2020-10-16 12:08:06,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:06,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:06,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:06,407 INFO L87 Difference]: Start difference. First operand 398 states and 1169 transitions. Second operand 4 states. [2020-10-16 12:08:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,450 INFO L93 Difference]: Finished difference Result 743 states and 2137 transitions. [2020-10-16 12:08:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:08:06,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:08:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,455 INFO L225 Difference]: With dead ends: 743 [2020-10-16 12:08:06,455 INFO L226 Difference]: Without dead ends: 410 [2020-10-16 12:08:06,455 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 12:08:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-16 12:08:06,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 302. [2020-10-16 12:08:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-16 12:08:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 832 transitions. [2020-10-16 12:08:06,467 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 832 transitions. Word has length 11 [2020-10-16 12:08:06,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,467 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 832 transitions. [2020-10-16 12:08:06,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 832 transitions. [2020-10-16 12:08:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:08:06,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:08:06,470 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 12:08:06,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1776505378, now seen corresponding path program 1 times [2020-10-16 12:08:06,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704002168] [2020-10-16 12:08:06,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,522 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 12:08:06,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704002168] [2020-10-16 12:08:06,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:08:06,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831192756] [2020-10-16 12:08:06,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:06,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:06,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:06,525 INFO L87 Difference]: Start difference. First operand 302 states and 832 transitions. Second operand 3 states. [2020-10-16 12:08:06,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,555 INFO L93 Difference]: Finished difference Result 398 states and 1088 transitions. [2020-10-16 12:08:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:06,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:08:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,559 INFO L225 Difference]: With dead ends: 398 [2020-10-16 12:08:06,560 INFO L226 Difference]: Without dead ends: 209 [2020-10-16 12:08:06,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-16 12:08:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-10-16 12:08:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-16 12:08:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 572 transitions. [2020-10-16 12:08:06,567 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 572 transitions. Word has length 12 [2020-10-16 12:08:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,568 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 572 transitions. [2020-10-16 12:08:06,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 572 transitions. [2020-10-16 12:08:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:08:06,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:08:06,571 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 12:08:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,572 INFO L82 PathProgramCache]: Analyzing trace with hash 762867507, now seen corresponding path program 1 times [2020-10-16 12:08:06,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154352105] [2020-10-16 12:08:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,649 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 12:08:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154352105] [2020-10-16 12:08:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:08:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212684723] [2020-10-16 12:08:06,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:08:06,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:08:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:08:06,655 INFO L87 Difference]: Start difference. First operand 209 states and 572 transitions. Second operand 3 states. [2020-10-16 12:08:06,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,673 INFO L93 Difference]: Finished difference Result 200 states and 542 transitions. [2020-10-16 12:08:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:08:06,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 12:08:06,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,681 INFO L225 Difference]: With dead ends: 200 [2020-10-16 12:08:06,681 INFO L226 Difference]: Without dead ends: 200 [2020-10-16 12:08:06,684 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 12:08:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-16 12:08:06,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-10-16 12:08:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-16 12:08:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 542 transitions. [2020-10-16 12:08:06,696 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 542 transitions. Word has length 13 [2020-10-16 12:08:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,697 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 542 transitions. [2020-10-16 12:08:06,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:08:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 542 transitions. [2020-10-16 12:08:06,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:08:06,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:08:06,699 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 12:08:06,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2120975707, now seen corresponding path program 1 times [2020-10-16 12:08:06,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24295395] [2020-10-16 12:08:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,774 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 12:08:06,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24295395] [2020-10-16 12:08:06,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:08:06,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393609741] [2020-10-16 12:08:06,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:06,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:06,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:06,778 INFO L87 Difference]: Start difference. First operand 200 states and 542 transitions. Second operand 4 states. [2020-10-16 12:08:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,809 INFO L93 Difference]: Finished difference Result 281 states and 758 transitions. [2020-10-16 12:08:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:08:06,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 12:08:06,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,812 INFO L225 Difference]: With dead ends: 281 [2020-10-16 12:08:06,812 INFO L226 Difference]: Without dead ends: 173 [2020-10-16 12:08:06,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:08:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-16 12:08:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-10-16 12:08:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-16 12:08:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 452 transitions. [2020-10-16 12:08:06,819 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 452 transitions. Word has length 14 [2020-10-16 12:08:06,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,819 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 452 transitions. [2020-10-16 12:08:06,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 452 transitions. [2020-10-16 12:08:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:08:06,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:08:06,820 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 12:08:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2121696457, now seen corresponding path program 2 times [2020-10-16 12:08:06,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133749681] [2020-10-16 12:08:06,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:06,932 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 12:08:06,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133749681] [2020-10-16 12:08:06,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:06,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:08:06,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66242984] [2020-10-16 12:08:06,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:08:06,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:08:06,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:08:06,934 INFO L87 Difference]: Start difference. First operand 173 states and 452 transitions. Second operand 4 states. [2020-10-16 12:08:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:06,968 INFO L93 Difference]: Finished difference Result 173 states and 397 transitions. [2020-10-16 12:08:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:08:06,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 12:08:06,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:06,970 INFO L225 Difference]: With dead ends: 173 [2020-10-16 12:08:06,970 INFO L226 Difference]: Without dead ends: 129 [2020-10-16 12:08:06,971 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 12:08:06,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-16 12:08:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-10-16 12:08:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-16 12:08:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 292 transitions. [2020-10-16 12:08:06,975 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 292 transitions. Word has length 14 [2020-10-16 12:08:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:06,975 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 292 transitions. [2020-10-16 12:08:06,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:08:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 292 transitions. [2020-10-16 12:08:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:08:06,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:06,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:06,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:08:06,977 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 12:08:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:06,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1022421451, now seen corresponding path program 1 times [2020-10-16 12:08:06,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:06,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489772452] [2020-10-16 12:08:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:07,072 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 12:08:07,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489772452] [2020-10-16 12:08:07,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:07,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:08:07,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359505641] [2020-10-16 12:08:07,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:08:07,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:07,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:08:07,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:08:07,076 INFO L87 Difference]: Start difference. First operand 129 states and 292 transitions. Second operand 5 states. [2020-10-16 12:08:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:07,126 INFO L93 Difference]: Finished difference Result 107 states and 211 transitions. [2020-10-16 12:08:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:08:07,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:08:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:07,129 INFO L225 Difference]: With dead ends: 107 [2020-10-16 12:08:07,129 INFO L226 Difference]: Without dead ends: 81 [2020-10-16 12:08:07,130 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 12:08:07,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-16 12:08:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-16 12:08:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-16 12:08:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 152 transitions. [2020-10-16 12:08:07,133 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 152 transitions. Word has length 16 [2020-10-16 12:08:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:07,133 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 152 transitions. [2020-10-16 12:08:07,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:08:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 152 transitions. [2020-10-16 12:08:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:08:07,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:07,134 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 12:08:07,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:08:07,134 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 12:08:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:07,135 INFO L82 PathProgramCache]: Analyzing trace with hash -2141011581, now seen corresponding path program 1 times [2020-10-16 12:08:07,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:07,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569397944] [2020-10-16 12:08:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:07,224 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 12:08:07,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569397944] [2020-10-16 12:08:07,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:07,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:08:07,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140424158] [2020-10-16 12:08:07,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:08:07,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:07,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:08:07,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:08:07,226 INFO L87 Difference]: Start difference. First operand 81 states and 152 transitions. Second operand 6 states. [2020-10-16 12:08:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:07,323 INFO L93 Difference]: Finished difference Result 69 states and 126 transitions. [2020-10-16 12:08:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:08:07,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 12:08:07,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:07,325 INFO L225 Difference]: With dead ends: 69 [2020-10-16 12:08:07,325 INFO L226 Difference]: Without dead ends: 61 [2020-10-16 12:08:07,325 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 12:08:07,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-16 12:08:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-16 12:08:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-16 12:08:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 112 transitions. [2020-10-16 12:08:07,328 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 112 transitions. Word has length 18 [2020-10-16 12:08:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:07,328 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 112 transitions. [2020-10-16 12:08:07,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:08:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 112 transitions. [2020-10-16 12:08:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:08:07,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:07,329 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] [2020-10-16 12:08:07,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:08:07,329 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 12:08:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:07,330 INFO L82 PathProgramCache]: Analyzing trace with hash -280198634, now seen corresponding path program 1 times [2020-10-16 12:08:07,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:07,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133486155] [2020-10-16 12:08:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:07,567 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 12:08:07,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133486155] [2020-10-16 12:08:07,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:07,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:08:07,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440818711] [2020-10-16 12:08:07,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:08:07,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:07,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:08:07,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:08:07,569 INFO L87 Difference]: Start difference. First operand 61 states and 112 transitions. Second operand 7 states. [2020-10-16 12:08:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:07,679 INFO L93 Difference]: Finished difference Result 83 states and 150 transitions. [2020-10-16 12:08:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:08:07,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 12:08:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:07,680 INFO L225 Difference]: With dead ends: 83 [2020-10-16 12:08:07,680 INFO L226 Difference]: Without dead ends: 49 [2020-10-16 12:08:07,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:08:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-16 12:08:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-16 12:08:07,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-16 12:08:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 84 transitions. [2020-10-16 12:08:07,683 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 84 transitions. Word has length 20 [2020-10-16 12:08:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:07,683 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 84 transitions. [2020-10-16 12:08:07,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:08:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 84 transitions. [2020-10-16 12:08:07,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:08:07,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:07,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:08:07,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:08:07,685 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 12:08:07,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:07,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1217087894, now seen corresponding path program 2 times [2020-10-16 12:08:07,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:07,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066215563] [2020-10-16 12:08:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:08:07,908 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 12:08:07,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066215563] [2020-10-16 12:08:07,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:08:07,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:08:07,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237180592] [2020-10-16 12:08:07,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:08:07,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:08:07,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:08:07,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:08:07,910 INFO L87 Difference]: Start difference. First operand 49 states and 84 transitions. Second operand 7 states. [2020-10-16 12:08:08,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:08:08,107 INFO L93 Difference]: Finished difference Result 70 states and 113 transitions. [2020-10-16 12:08:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:08:08,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 12:08:08,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:08:08,108 INFO L225 Difference]: With dead ends: 70 [2020-10-16 12:08:08,108 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 12:08:08,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:08:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 12:08:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2020-10-16 12:08:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 12:08:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-16 12:08:08,111 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 20 [2020-10-16 12:08:08,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:08:08,111 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-16 12:08:08,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:08:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-16 12:08:08,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:08:08,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:08:08,112 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] [2020-10-16 12:08:08,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:08:08,112 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:08:08,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:08:08,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1827958826, now seen corresponding path program 3 times [2020-10-16 12:08:08,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:08:08,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656369972] [2020-10-16 12:08:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:08:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:08:08,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:08:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:08:08,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:08:08,227 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:08:08,227 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:08:08,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:08:08,229 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:08:08,250 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [910] [910] L3-->L836: Formula: (let ((.cse7 (= (mod ~x$r_buff1_thd0~0_In-1156477981 256) 0)) (.cse6 (= (mod ~x$w_buff1_used~0_In-1156477981 256) 0)) (.cse9 (= (mod ~x$r_buff0_thd0~0_In-1156477981 256) 0)) (.cse8 (= (mod ~x$w_buff0_used~0_In-1156477981 256) 0))) (let ((.cse2 (or .cse9 .cse8)) (.cse0 (not .cse9)) (.cse1 (not .cse8)) (.cse3 (not .cse6)) (.cse4 (not .cse7)) (.cse5 (or .cse6 .cse7))) (and (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1156477981 0)) (= ~x$r_buff1_thd0~0_Out-1156477981 ~x$r_buff1_thd0~0_In-1156477981) (= ~x$r_buff0_thd0~0_In-1156477981 ~x$r_buff0_thd0~0_Out-1156477981) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1156477981 |ULTIMATE.start_assume_abort_if_not_#in~cond_In-1156477981|) (or (and (= ~x$w_buff0_used~0_Out-1156477981 0) .cse0 .cse1) (and .cse2 (= ~x$w_buff0_used~0_Out-1156477981 ~x$w_buff0_used~0_In-1156477981))) (or (and .cse2 (or (and .cse3 (= ~x~0_Out-1156477981 ~x$w_buff1~0_In-1156477981) .cse4) (and .cse5 (= ~x~0_In-1156477981 ~x~0_Out-1156477981)))) (and (= ~x$w_buff0~0_In-1156477981 ~x~0_Out-1156477981) .cse0 .cse1)) (or (and .cse3 (= ~x$w_buff1_used~0_Out-1156477981 0) .cse4) (and .cse5 (= ~x$w_buff1_used~0_In-1156477981 ~x$w_buff1_used~0_Out-1156477981)))))) InVars {~x$w_buff0~0=~x$w_buff0~0_In-1156477981, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_In-1156477981, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1156477981|, ~x$w_buff1~0=~x$w_buff1~0_In-1156477981, ~x$w_buff1_used~0=~x$w_buff1_used~0_In-1156477981, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_In-1156477981, ~x~0=~x~0_In-1156477981, ~x$w_buff0_used~0=~x$w_buff0_used~0_In-1156477981} OutVars{~x$w_buff0~0=~x$w_buff0~0_In-1156477981, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_Out-1156477981, ~x$w_buff1~0=~x$w_buff1~0_In-1156477981, ~x$w_buff1_used~0=~x$w_buff1_used~0_Out-1156477981, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_Out-1156477981, ULTIMATE.start_main_#t~ite43=|ULTIMATE.start_main_#t~ite43_Out-1156477981|, ULTIMATE.start_main_#t~ite42=|ULTIMATE.start_main_#t~ite42_Out-1156477981|, ULTIMATE.start_main_#t~ite45=|ULTIMATE.start_main_#t~ite45_Out-1156477981|, ~x$w_buff0_used~0=~x$w_buff0_used~0_Out-1156477981, ULTIMATE.start_main_#t~ite44=|ULTIMATE.start_main_#t~ite44_Out-1156477981|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1156477981|, ULTIMATE.start_main_#t~ite41=|ULTIMATE.start_main_#t~ite41_Out-1156477981|, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-1156477981|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1156477981, ~x~0=~x~0_Out-1156477981} AuxVars[] AssignedVars[~x$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite41, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_assume_abort_if_not_~cond, ~x$w_buff1_used~0, ~x$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite43, ULTIMATE.start_main_#t~ite42, ~x~0, ULTIMATE.start_main_#t~ite45, ~x$w_buff0_used~0, ULTIMATE.start_main_#t~ite44] because there is no mapped edge [2020-10-16 12:08:08,256 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 12:08:08,257 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,259 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 12:08:08,259 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,259 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 12:08:08,259 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,259 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 12:08:08,260 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,260 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 12:08:08,260 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,260 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 12:08:08,260 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,261 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 12:08:08,261 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,261 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 12:08:08,262 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,262 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 12:08:08,262 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,262 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 12:08:08,262 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,263 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 12:08:08,263 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,263 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 12:08:08,263 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,263 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 12:08:08,264 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,264 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 12:08:08,264 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,264 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 12:08:08,264 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,265 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 12:08:08,265 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,265 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 12:08:08,265 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,265 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 12:08:08,265 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,266 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 12:08:08,266 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,266 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 12:08:08,266 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,266 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 12:08:08,267 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,267 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 12:08:08,267 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,267 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 12:08:08,267 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,268 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 12:08:08,268 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:08:08,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:08:08 BasicIcfg [2020-10-16 12:08:08,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:08:08,322 INFO L168 Benchmark]: Toolchain (without parser) took 9404.97 ms. Allocated memory was 146.8 MB in the beginning and 325.6 MB in the end (delta: 178.8 MB). Free memory was 101.4 MB in the beginning and 146.0 MB in the end (delta: -44.6 MB). Peak memory consumption was 134.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,323 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.32 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.2 MB in the beginning and 157.3 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.77 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 154.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,326 INFO L168 Benchmark]: Boogie Preprocessor took 40.23 ms. Allocated memory is still 203.9 MB. Free memory was 154.4 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,326 INFO L168 Benchmark]: RCFGBuilder took 2281.33 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 152.3 MB in the beginning and 195.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,327 INFO L168 Benchmark]: TraceAbstraction took 6127.14 ms. Allocated memory was 247.5 MB in the beginning and 325.6 MB in the end (delta: 78.1 MB). Free memory was 195.1 MB in the beginning and 146.0 MB in the end (delta: 49.1 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:08:08,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 883.32 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.2 MB in the beginning and 157.3 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.77 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 154.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.23 ms. Allocated memory is still 203.9 MB. Free memory was 154.4 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2281.33 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 152.3 MB in the beginning and 195.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6127.14 ms. Allocated memory was 247.5 MB in the beginning and 325.6 MB in the end (delta: 78.1 MB). Free memory was 195.1 MB in the beginning and 146.0 MB in the end (delta: 49.1 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 789 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 60 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 100 PlacesBefore, 35 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 1544 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 79 TotalNumberOfCompositions, 4006 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p0_EAX = 0; [L703] 0 int __unbuffered_p2_EAX = 0; [L705] 0 int __unbuffered_p2_EBX = 0; [L706] 0 _Bool main$tmp_guard0; [L707] 0 _Bool main$tmp_guard1; [L709] 0 int x = 0; [L710] 0 _Bool x$flush_delayed; [L711] 0 int x$mem_tmp; [L712] 0 _Bool x$r_buff0_thd0; [L713] 0 _Bool x$r_buff0_thd1; [L714] 0 _Bool x$r_buff0_thd2; [L715] 0 _Bool x$r_buff0_thd3; [L716] 0 _Bool x$r_buff1_thd0; [L717] 0 _Bool x$r_buff1_thd1; [L718] 0 _Bool x$r_buff1_thd2; [L719] 0 _Bool x$r_buff1_thd3; [L720] 0 _Bool x$read_delayed; [L721] 0 int *x$read_delayed_var; [L722] 0 int x$w_buff0; [L723] 0 _Bool x$w_buff0_used; [L724] 0 int x$w_buff1; [L725] 0 _Bool x$w_buff1_used; [L727] 0 int y = 0; [L728] 0 _Bool weak$$choice0; [L729] 0 _Bool weak$$choice2; [L820] 0 pthread_t t1909; [L821] FCALL, FORK 0 pthread_create(&t1909, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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] [L822] 0 pthread_t t1910; [L823] FCALL, FORK 0 pthread_create(&t1910, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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] [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 1 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L8] COND FALSE 2 !(!expression) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L824] 0 pthread_t t1911; [L825] FCALL, FORK 0 pthread_create(&t1911, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L792] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L795] 3 __unbuffered_p2_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L733] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L798] 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) [L798] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L798] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L799] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L800] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L801] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L801] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L802] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L802] 3 x$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 [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L807] 3 return 0; [L738] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L739] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L740] 1 x$flush_delayed = weak$$choice2 [L741] 1 x$mem_tmp = x [L742] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1 [L742] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L742] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L743] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L743] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L744] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L744] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1 [L744] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L744] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L744] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L745] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L745] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L746] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L747] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L747] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L748] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L748] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L748] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L748] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L749] 1 __unbuffered_p0_EAX = x [L750] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L750] 1 x = x$flush_delayed ? x$mem_tmp : x [L751] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L827] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L838] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, 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$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 289 SDtfs, 240 SDslu, 423 SDs, 0 SdLazy, 207 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 119 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 12092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...