/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:48:19,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:48:19,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:48:19,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:48:19,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:48:19,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:48:19,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:48:19,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:48:19,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:48:19,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:48:19,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:48:19,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:48:19,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:48:19,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:48:19,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:48:19,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:48:19,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:48:19,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:48:19,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:48:19,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:48:19,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:48:19,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:48:19,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:48:19,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:48:19,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:48:19,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:48:19,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:48:19,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:48:19,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:48:19,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:48:19,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:48:19,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:48:19,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:48:19,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:48:19,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:48:19,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:48:19,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:48:19,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:48:19,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:48:19,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:48:19,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:48:19,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:48:19,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:48:19,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:48:19,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:48:19,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:48:19,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:48:19,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:48:19,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:48:19,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:48:19,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:48:19,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:48:19,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:48:19,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:48:19,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:48:19,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:48:19,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:48:19,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:48:19,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:48:19,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:48:19,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:48:19,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:48:19,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:48:19,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:48:19,868 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:48:19,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:48:19,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:48:19,869 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:48:20,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:48:20,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:48:20,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:48:20,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:48:20,214 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:48:20,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i [2020-10-06 00:48:20,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916c55e47/66ab9318d8ca4d958dcf7b7b646a099a/FLAG1ba84a1d2 [2020-10-06 00:48:20,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:48:20,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i [2020-10-06 00:48:20,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916c55e47/66ab9318d8ca4d958dcf7b7b646a099a/FLAG1ba84a1d2 [2020-10-06 00:48:21,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916c55e47/66ab9318d8ca4d958dcf7b7b646a099a [2020-10-06 00:48:21,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:48:21,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:48:21,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:21,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:48:21,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:48:21,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abbea44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21, skipping insertion in model container [2020-10-06 00:48:21,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:48:21,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:48:21,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:21,703 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:48:21,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:21,838 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:48:21,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21 WrapperNode [2020-10-06 00:48:21,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:21,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:21,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:48:21,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:48:21,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:21,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:48:21,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:48:21,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:48:21,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... [2020-10-06 00:48:21,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:48:21,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:48:21,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:48:21,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:48:21,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:48:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:48:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:48:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:48:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:48:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:48:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:48:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:48:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:48:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:48:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:48:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:48:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:48:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:48:22,051 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:48:24,129 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:48:24,130 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:48:24,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:24 BoogieIcfgContainer [2020-10-06 00:48:24,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:48:24,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:48:24,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:48:24,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:48:24,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:48:21" (1/3) ... [2020-10-06 00:48:24,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1b027a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:24, skipping insertion in model container [2020-10-06 00:48:24,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:21" (2/3) ... [2020-10-06 00:48:24,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1b027a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:24, skipping insertion in model container [2020-10-06 00:48:24,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:24" (3/3) ... [2020-10-06 00:48:24,142 INFO L109 eAbstractionObserver]: Analyzing ICFG mix056_pso.opt.i [2020-10-06 00:48:24,155 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:48:24,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:48:24,164 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:48:24,165 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:48:24,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,200 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:24,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:48:24,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:48:24,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:48:24,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:48:24,254 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:48:24,254 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:48:24,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:48:24,255 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:48:24,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:48:24,270 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:24,273 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:24,318 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:24,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:24,323 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:24,326 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:24,349 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:24,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:24,350 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:24,352 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1536 [2020-10-06 00:48:24,353 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:48:24,856 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 00:48:25,181 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2020-10-06 00:48:25,895 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:48:26,047 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:48:27,524 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:27,574 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:27,574 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:27,579 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:27,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:28,471 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 106 [2020-10-06 00:48:29,540 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:29,565 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:29,565 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:29,568 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:29,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:30,227 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2020-10-06 00:48:32,154 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 243 DAG size of output: 203 [2020-10-06 00:48:32,169 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 00:48:32,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:32,170 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:32,171 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:33,602 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 159 DAG size of output: 130 [2020-10-06 00:48:33,859 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-06 00:48:33,985 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-06 00:48:33,992 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4008 [2020-10-06 00:48:33,992 INFO L214 etLargeBlockEncoding]: Total number of compositions: 78 [2020-10-06 00:48:33,996 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-06 00:48:34,034 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 650 states. [2020-10-06 00:48:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states. [2020-10-06 00:48:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 00:48:34,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:34,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:34,045 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:34,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:34,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1913445642, now seen corresponding path program 1 times [2020-10-06 00:48:34,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:34,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232190080] [2020-10-06 00:48:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:34,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232190080] [2020-10-06 00:48:34,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:34,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:34,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1635749221] [2020-10-06 00:48:34,330 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:34,333 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:34,348 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 00:48:34,348 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:34,352 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:34,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:34,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:34,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:34,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:34,370 INFO L87 Difference]: Start difference. First operand 650 states. Second operand 3 states. [2020-10-06 00:48:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:34,493 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-06 00:48:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:34,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 00:48:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:34,515 INFO L225 Difference]: With dead ends: 550 [2020-10-06 00:48:34,515 INFO L226 Difference]: Without dead ends: 450 [2020-10-06 00:48:34,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:34,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-06 00:48:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-06 00:48:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-06 00:48:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-06 00:48:34,619 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 7 [2020-10-06 00:48:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:34,620 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-06 00:48:34,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-06 00:48:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:48:34,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:34,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:34,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:48:34,622 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:34,623 INFO L82 PathProgramCache]: Analyzing trace with hash 575294358, now seen corresponding path program 1 times [2020-10-06 00:48:34,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:34,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826377142] [2020-10-06 00:48:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:34,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826377142] [2020-10-06 00:48:34,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:34,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:34,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1669964949] [2020-10-06 00:48:34,730 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:34,732 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:34,734 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:48:34,734 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:34,734 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:34,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:34,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:34,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:34,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:34,737 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-06 00:48:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:34,752 INFO L93 Difference]: Finished difference Result 440 states and 1320 transitions. [2020-10-06 00:48:34,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:34,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:48:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:34,759 INFO L225 Difference]: With dead ends: 440 [2020-10-06 00:48:34,759 INFO L226 Difference]: Without dead ends: 440 [2020-10-06 00:48:34,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-06 00:48:34,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2020-10-06 00:48:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-10-06 00:48:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 1320 transitions. [2020-10-06 00:48:34,786 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 1320 transitions. Word has length 9 [2020-10-06 00:48:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:34,786 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 1320 transitions. [2020-10-06 00:48:34,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 1320 transitions. [2020-10-06 00:48:34,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:48:34,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:34,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:34,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:48:34,789 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:34,789 INFO L82 PathProgramCache]: Analyzing trace with hash 654255379, now seen corresponding path program 1 times [2020-10-06 00:48:34,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:34,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235370448] [2020-10-06 00:48:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:34,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235370448] [2020-10-06 00:48:34,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:34,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:48:34,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [592856589] [2020-10-06 00:48:34,962 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:34,963 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:34,967 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 00:48:34,968 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:35,012 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:48:35,012 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,013 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:48:35,013 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,015 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,016 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:35,021 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,040 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:35,049 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:35,062 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:35,067 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,074 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:35,104 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:35,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:48:35,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:35,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:48:35,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:35,105 INFO L87 Difference]: Start difference. First operand 440 states and 1320 transitions. Second operand 4 states. [2020-10-06 00:48:35,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:35,152 INFO L93 Difference]: Finished difference Result 434 states and 1298 transitions. [2020-10-06 00:48:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:35,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 00:48:35,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:35,157 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:35,157 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:35,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:35,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-10-06 00:48:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-06 00:48:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1298 transitions. [2020-10-06 00:48:35,177 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1298 transitions. Word has length 10 [2020-10-06 00:48:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:35,178 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 1298 transitions. [2020-10-06 00:48:35,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:48:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1298 transitions. [2020-10-06 00:48:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:35,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:35,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:35,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:48:35,180 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:35,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1192921599, now seen corresponding path program 1 times [2020-10-06 00:48:35,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:35,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018380294] [2020-10-06 00:48:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:35,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018380294] [2020-10-06 00:48:35,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:35,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:48:35,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1693749171] [2020-10-06 00:48:35,260 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:35,262 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:35,264 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 19 transitions. [2020-10-06 00:48:35,264 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:35,286 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:35,305 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,316 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,321 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,347 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:35,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:48:35,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:48:35,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:35,349 INFO L87 Difference]: Start difference. First operand 434 states and 1298 transitions. Second operand 4 states. [2020-10-06 00:48:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:35,401 INFO L93 Difference]: Finished difference Result 438 states and 1309 transitions. [2020-10-06 00:48:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:35,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 00:48:35,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:35,411 INFO L225 Difference]: With dead ends: 438 [2020-10-06 00:48:35,412 INFO L226 Difference]: Without dead ends: 438 [2020-10-06 00:48:35,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-10-06 00:48:35,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2020-10-06 00:48:35,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-06 00:48:35,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1309 transitions. [2020-10-06 00:48:35,428 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1309 transitions. Word has length 11 [2020-10-06 00:48:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:35,429 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 1309 transitions. [2020-10-06 00:48:35,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:48:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1309 transitions. [2020-10-06 00:48:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:35,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:35,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:35,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:48:35,431 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:35,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:35,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1192920235, now seen corresponding path program 1 times [2020-10-06 00:48:35,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:35,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202784714] [2020-10-06 00:48:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:35,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202784714] [2020-10-06 00:48:35,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:35,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:35,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [432698343] [2020-10-06 00:48:35,674 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:35,676 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:35,679 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-06 00:48:35,679 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:35,690 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,691 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-06 00:48:35,691 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,693 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:35,698 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:35,706 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,707 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:35,841 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 15 [2020-10-06 00:48:35,858 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [6807#(and (<= ~y~0 0) (or (<= ~y$w_buff1~0 0) (= (mod ~y$w_buff1_used~0 256) 0)) (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))))] [2020-10-06 00:48:35,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 00:48:35,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:35,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 00:48:35,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:48:35,859 INFO L87 Difference]: Start difference. First operand 438 states and 1309 transitions. Second operand 6 states. [2020-10-06 00:48:35,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:35,958 INFO L93 Difference]: Finished difference Result 426 states and 1265 transitions. [2020-10-06 00:48:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:35,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-06 00:48:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:35,964 INFO L225 Difference]: With dead ends: 426 [2020-10-06 00:48:35,964 INFO L226 Difference]: Without dead ends: 426 [2020-10-06 00:48:35,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-10-06 00:48:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-10-06 00:48:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1265 transitions. [2020-10-06 00:48:35,980 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1265 transitions. Word has length 11 [2020-10-06 00:48:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:35,980 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1265 transitions. [2020-10-06 00:48:35,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 00:48:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1265 transitions. [2020-10-06 00:48:35,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:35,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:35,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:35,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:48:35,985 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:35,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1194181749, now seen corresponding path program 2 times [2020-10-06 00:48:35,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:35,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122642720] [2020-10-06 00:48:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:36,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122642720] [2020-10-06 00:48:36,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:36,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:36,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [822953141] [2020-10-06 00:48:36,224 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:36,225 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:36,229 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-06 00:48:36,229 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:36,257 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:36,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:36,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:36,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:36,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:36,259 INFO L87 Difference]: Start difference. First operand 426 states and 1265 transitions. Second operand 5 states. [2020-10-06 00:48:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:36,328 INFO L93 Difference]: Finished difference Result 422 states and 1250 transitions. [2020-10-06 00:48:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:36,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 00:48:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:36,332 INFO L225 Difference]: With dead ends: 422 [2020-10-06 00:48:36,332 INFO L226 Difference]: Without dead ends: 422 [2020-10-06 00:48:36,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-06 00:48:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 418. [2020-10-06 00:48:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-06 00:48:36,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1239 transitions. [2020-10-06 00:48:36,347 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1239 transitions. Word has length 11 [2020-10-06 00:48:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:36,347 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 1239 transitions. [2020-10-06 00:48:36,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1239 transitions. [2020-10-06 00:48:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:48:36,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:36,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:36,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:48:36,349 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:36,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:36,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1674134258, now seen corresponding path program 1 times [2020-10-06 00:48:36,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:36,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029009311] [2020-10-06 00:48:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:36,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029009311] [2020-10-06 00:48:36,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:36,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:36,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1891413716] [2020-10-06 00:48:36,444 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:36,445 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:36,448 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-10-06 00:48:36,448 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:36,467 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:36,475 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,476 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,483 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,505 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:36,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:36,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:36,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:36,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:36,506 INFO L87 Difference]: Start difference. First operand 418 states and 1239 transitions. Second operand 5 states. [2020-10-06 00:48:36,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:36,552 INFO L93 Difference]: Finished difference Result 414 states and 1224 transitions. [2020-10-06 00:48:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:36,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 00:48:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:36,557 INFO L225 Difference]: With dead ends: 414 [2020-10-06 00:48:36,557 INFO L226 Difference]: Without dead ends: 414 [2020-10-06 00:48:36,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-06 00:48:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2020-10-06 00:48:36,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-06 00:48:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1213 transitions. [2020-10-06 00:48:36,572 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1213 transitions. Word has length 12 [2020-10-06 00:48:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:36,572 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 1213 transitions. [2020-10-06 00:48:36,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1213 transitions. [2020-10-06 00:48:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:48:36,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:36,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:36,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:48:36,574 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:36,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:36,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1674135591, now seen corresponding path program 1 times [2020-10-06 00:48:36,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:36,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696069413] [2020-10-06 00:48:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:36,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696069413] [2020-10-06 00:48:36,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:36,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 00:48:36,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1640825102] [2020-10-06 00:48:36,758 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:36,760 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:36,762 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:48:36,762 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:36,776 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:36,778 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,779 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,799 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:36,807 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 4 conjuncts [2020-10-06 00:48:36,814 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:36,824 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:36,831 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:36,868 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10596#(and (= (* 256 (div ~y$w_buff1_used~0 256)) ~y$w_buff1_used~0) (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))) (<= 0 ~y$r_buff0_thd0~0))] [2020-10-06 00:48:36,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:36,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:36,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:36,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:36,869 INFO L87 Difference]: Start difference. First operand 410 states and 1213 transitions. Second operand 7 states. [2020-10-06 00:48:36,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:36,984 INFO L93 Difference]: Finished difference Result 434 states and 1271 transitions. [2020-10-06 00:48:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:36,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-06 00:48:36,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:36,988 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:36,988 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:36,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:48:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:36,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2020-10-06 00:48:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1253 transitions. [2020-10-06 00:48:37,002 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1253 transitions. Word has length 12 [2020-10-06 00:48:37,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:37,003 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1253 transitions. [2020-10-06 00:48:37,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1253 transitions. [2020-10-06 00:48:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:37,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:37,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:37,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 00:48:37,005 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:37,005 INFO L82 PathProgramCache]: Analyzing trace with hash 358553942, now seen corresponding path program 1 times [2020-10-06 00:48:37,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:37,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093503689] [2020-10-06 00:48:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:37,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093503689] [2020-10-06 00:48:37,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:37,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:37,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [332795329] [2020-10-06 00:48:37,261 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:37,263 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:37,268 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 21 transitions. [2020-10-06 00:48:37,269 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:37,282 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:37,284 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:37,291 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:37,297 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:37,300 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:37,322 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:37,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:37,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:37,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:37,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:37,324 INFO L87 Difference]: Start difference. First operand 426 states and 1253 transitions. Second operand 7 states. [2020-10-06 00:48:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:37,485 INFO L93 Difference]: Finished difference Result 474 states and 1393 transitions. [2020-10-06 00:48:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:37,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-06 00:48:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:37,490 INFO L225 Difference]: With dead ends: 474 [2020-10-06 00:48:37,490 INFO L226 Difference]: Without dead ends: 474 [2020-10-06 00:48:37,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:48:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-06 00:48:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2020-10-06 00:48:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-06 00:48:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1393 transitions. [2020-10-06 00:48:37,505 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1393 transitions. Word has length 13 [2020-10-06 00:48:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:37,506 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 1393 transitions. [2020-10-06 00:48:37,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1393 transitions. [2020-10-06 00:48:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:37,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:37,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:37,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 00:48:37,508 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:37,508 INFO L82 PathProgramCache]: Analyzing trace with hash 358593932, now seen corresponding path program 2 times [2020-10-06 00:48:37,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:37,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522801525] [2020-10-06 00:48:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:37,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522801525] [2020-10-06 00:48:37,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:37,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:37,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1979115299] [2020-10-06 00:48:37,836 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:37,837 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:37,843 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-06 00:48:37,843 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:37,857 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:37,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:37,864 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:37,881 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:37,888 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 4 conjuncts [2020-10-06 00:48:37,892 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:37,893 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:37,902 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:37,950 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [13327#(and (= (* 256 (div ~y$w_buff1_used~0 256)) ~y$w_buff1_used~0) (<= ~y$w_buff1~0 0) (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))) (<= ~y$r_buff0_thd2~0 (* 256 (div ~y$r_buff0_thd2~0 256))) (< 0 (+ (div ~y$r_buff0_thd2~0 256) 1)))] [2020-10-06 00:48:37,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 00:48:37,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:37,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 00:48:37,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-06 00:48:37,952 INFO L87 Difference]: Start difference. First operand 474 states and 1393 transitions. Second operand 8 states. [2020-10-06 00:48:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:38,157 INFO L93 Difference]: Finished difference Result 530 states and 1503 transitions. [2020-10-06 00:48:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 00:48:38,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-06 00:48:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:38,161 INFO L225 Difference]: With dead ends: 530 [2020-10-06 00:48:38,162 INFO L226 Difference]: Without dead ends: 458 [2020-10-06 00:48:38,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-06 00:48:38,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-10-06 00:48:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 386. [2020-10-06 00:48:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-06 00:48:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1107 transitions. [2020-10-06 00:48:38,176 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1107 transitions. Word has length 13 [2020-10-06 00:48:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:38,176 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 1107 transitions. [2020-10-06 00:48:38,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 00:48:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1107 transitions. [2020-10-06 00:48:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:38,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:38,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:38,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 00:48:38,178 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:38,179 INFO L82 PathProgramCache]: Analyzing trace with hash 359870388, now seen corresponding path program 1 times [2020-10-06 00:48:38,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:38,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124890598] [2020-10-06 00:48:38,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:38,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124890598] [2020-10-06 00:48:38,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:38,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:38,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1555595652] [2020-10-06 00:48:38,282 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:38,284 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:38,287 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 27 transitions. [2020-10-06 00:48:38,287 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:38,313 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:38,318 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [14638#(= (mod ~main$tmp_guard0~0 256) 0)] [2020-10-06 00:48:38,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:38,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:38,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:38,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:38,319 INFO L87 Difference]: Start difference. First operand 386 states and 1107 transitions. Second operand 5 states. [2020-10-06 00:48:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:38,346 INFO L93 Difference]: Finished difference Result 302 states and 758 transitions. [2020-10-06 00:48:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:38,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 00:48:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:38,348 INFO L225 Difference]: With dead ends: 302 [2020-10-06 00:48:38,348 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:48:38,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:48:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:48:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:48:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:48:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:48:38,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-06 00:48:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:38,350 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:48:38,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:48:38,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:48:38,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 00:48:38,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:48:38 BasicIcfg [2020-10-06 00:48:38,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:48:38,356 INFO L168 Benchmark]: Toolchain (without parser) took 17232.01 ms. Allocated memory was 146.8 MB in the beginning and 367.0 MB in the end (delta: 220.2 MB). Free memory was 101.1 MB in the beginning and 102.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 219.1 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,357 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.78 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 156.2 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.51 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 153.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,359 INFO L168 Benchmark]: Boogie Preprocessor took 44.50 ms. Allocated memory is still 202.9 MB. Free memory was 153.5 MB in the beginning and 150.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,360 INFO L168 Benchmark]: RCFGBuilder took 2174.72 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 150.8 MB in the beginning and 197.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,360 INFO L168 Benchmark]: TraceAbstraction took 14220.08 ms. Allocated memory was 251.1 MB in the beginning and 367.0 MB in the end (delta: 115.9 MB). Free memory was 197.8 MB in the beginning and 102.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:38,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.78 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 156.2 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.51 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 153.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.50 ms. Allocated memory is still 202.9 MB. Free memory was 153.5 MB in the beginning and 150.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2174.72 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 150.8 MB in the beginning and 197.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14220.08 ms. Allocated memory was 251.1 MB in the beginning and 367.0 MB in the end (delta: 115.9 MB). Free memory was 197.8 MB in the beginning and 102.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 9.7s, 99 ProgramPointsBefore, 35 ProgramPointsAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 1536 CoEnabledTransitionPairs, 8 FixpointIterations, 31 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 797 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4008 CheckedPairsTotal, 78 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.7s, HoareTripleCheckerStatistics: 221 SDtfs, 280 SDslu, 279 SDs, 0 SdLazy, 189 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 88 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 16307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...