/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/mix045_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:41:12,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:41:12,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:41:12,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:41:12,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:41:12,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:41:12,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:41:12,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:41:12,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:41:12,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:41:12,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:41:12,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:41:12,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:41:12,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:41:12,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:41:12,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:41:12,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:41:12,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:41:12,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:41:12,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:41:12,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:41:12,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:41:12,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:41:12,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:41:12,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:41:12,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:41:12,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:41:12,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:41:12,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:41:12,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:41:12,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:41:12,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:41:12,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:41:12,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:41:12,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:41:12,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:41:12,602 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 00:41:12,630 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:41:12,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:41:12,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:41:12,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:41:12,633 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:41:12,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:41:12,633 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:41:12,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:41:12,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:41:12,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:41:12,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:41:12,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:41:12,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:41:12,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:41:12,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:41:12,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:41:12,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:41:12,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:41:12,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:41:12,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:41:12,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:41:12,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:41:12,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:41:12,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:41:12,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:41:12,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:41:12,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:41:12,637 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:41:12,638 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:41:12,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:41:12,638 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:41:12,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:41:12,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:41:12,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:41:12,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:41:12,962 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:41:12,963 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_pso.opt.i [2020-10-06 00:41:13,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38ef2b724/df0a0eb7ea184a1a84d6a15d65b55ebe/FLAGa1714dd93 [2020-10-06 00:41:13,527 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:41:13,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_pso.opt.i [2020-10-06 00:41:13,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38ef2b724/df0a0eb7ea184a1a84d6a15d65b55ebe/FLAGa1714dd93 [2020-10-06 00:41:13,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38ef2b724/df0a0eb7ea184a1a84d6a15d65b55ebe [2020-10-06 00:41:13,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:41:13,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:41:13,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:41:13,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:41:13,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:41:13,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:41:13" (1/1) ... [2020-10-06 00:41:13,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259270b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:13, skipping insertion in model container [2020-10-06 00:41:13,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:41:13" (1/1) ... [2020-10-06 00:41:13,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:41:13,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:41:14,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:41:14,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:41:14,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:41:14,739 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:41:14,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14 WrapperNode [2020-10-06 00:41:14,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:41:14,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:41:14,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:41:14,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:41:14,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:41:14,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:41:14,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:41:14,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:41:14,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (1/1) ... [2020-10-06 00:41:14,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:41:14,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:41:14,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:41:14,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:41:14,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (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 00:41:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:41:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:41:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:41:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:41:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:41:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:41:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:41:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:41:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:41:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:41:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:41:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:41:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:41:14,932 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 00:41:16,975 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:41:16,976 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:41:16,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:41:16 BoogieIcfgContainer [2020-10-06 00:41:16,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:41:16,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:41:16,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:41:16,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:41:16,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:41:13" (1/3) ... [2020-10-06 00:41:16,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecce68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:41:16, skipping insertion in model container [2020-10-06 00:41:16,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:14" (2/3) ... [2020-10-06 00:41:16,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecce68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:41:16, skipping insertion in model container [2020-10-06 00:41:16,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:41:16" (3/3) ... [2020-10-06 00:41:16,988 INFO L109 eAbstractionObserver]: Analyzing ICFG mix045_pso.opt.i [2020-10-06 00:41:17,001 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:41:17,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:41:17,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:41:17,012 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:41:17,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,047 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,048 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,048 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,074 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:17,095 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:41:17,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:41:17,120 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:41:17,120 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:41:17,120 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:41:17,120 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:41:17,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:41:17,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:41:17,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:41:17,139 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:17,142 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:17,193 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2020-10-06 00:41:17,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:41:17,200 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 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. 0/88 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-06 00:41:17,203 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:17,228 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2020-10-06 00:41:17,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:41:17,229 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 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. 0/88 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-06 00:41:17,232 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1692 [2020-10-06 00:41:17,233 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:41:18,897 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2020-10-06 00:41:18,954 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 2, 1] term [2020-10-06 00:41:18,954 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:41:18,961 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-06 00:41:18,962 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:41:19,845 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2020-10-06 00:41:20,808 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-06 00:41:20,923 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-06 00:41:21,551 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-06 00:41:21,851 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-06 00:41:22,714 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-10-06 00:41:23,039 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-06 00:41:23,690 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-06 00:41:24,004 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-06 00:41:24,131 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 00:41:24,239 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 00:41:24,493 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-06 00:41:24,608 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-06 00:41:24,616 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4375 [2020-10-06 00:41:24,616 INFO L214 etLargeBlockEncoding]: Total number of compositions: 80 [2020-10-06 00:41:24,620 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 26 transitions, 67 flow [2020-10-06 00:41:24,669 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 750 states. [2020-10-06 00:41:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states. [2020-10-06 00:41:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 00:41:24,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:24,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:24,680 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 00:41:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:24,687 INFO L82 PathProgramCache]: Analyzing trace with hash -139107104, now seen corresponding path program 1 times [2020-10-06 00:41:24,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:24,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148961164] [2020-10-06 00:41:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:24,994 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 00:41:24,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148961164] [2020-10-06 00:41:24,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:24,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:24,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [149824819] [2020-10-06 00:41:24,998 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:25,001 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:25,014 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 00:41:25,015 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:25,019 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:25,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:25,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:25,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:25,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:25,033 INFO L87 Difference]: Start difference. First operand 750 states. Second operand 3 states. [2020-10-06 00:41:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:25,171 INFO L93 Difference]: Finished difference Result 650 states and 2028 transitions. [2020-10-06 00:41:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:25,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 00:41:25,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:25,214 INFO L225 Difference]: With dead ends: 650 [2020-10-06 00:41:25,214 INFO L226 Difference]: Without dead ends: 530 [2020-10-06 00:41:25,216 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 00:41:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-06 00:41:25,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-06 00:41:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-06 00:41:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1622 transitions. [2020-10-06 00:41:25,310 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1622 transitions. Word has length 7 [2020-10-06 00:41:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:25,311 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 1622 transitions. [2020-10-06 00:41:25,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1622 transitions. [2020-10-06 00:41:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:41:25,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:25,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:25,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:41:25,314 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 00:41:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:25,314 INFO L82 PathProgramCache]: Analyzing trace with hash -537885840, now seen corresponding path program 1 times [2020-10-06 00:41:25,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:25,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771954034] [2020-10-06 00:41:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:25,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771954034] [2020-10-06 00:41:25,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:25,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:25,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1166977117] [2020-10-06 00:41:25,442 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:25,444 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:25,446 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:41:25,446 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:25,446 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:25,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:25,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:25,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:25,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:25,449 INFO L87 Difference]: Start difference. First operand 530 states and 1622 transitions. Second operand 3 states. [2020-10-06 00:41:25,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:25,478 INFO L93 Difference]: Finished difference Result 528 states and 1614 transitions. [2020-10-06 00:41:25,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:25,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:41:25,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:25,485 INFO L225 Difference]: With dead ends: 528 [2020-10-06 00:41:25,485 INFO L226 Difference]: Without dead ends: 528 [2020-10-06 00:41:25,486 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 00:41:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-06 00:41:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-10-06 00:41:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-06 00:41:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1614 transitions. [2020-10-06 00:41:25,521 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1614 transitions. Word has length 9 [2020-10-06 00:41:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:25,521 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 1614 transitions. [2020-10-06 00:41:25,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1614 transitions. [2020-10-06 00:41:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:41:25,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:25,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:25,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:41:25,524 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 00:41:25,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:25,524 INFO L82 PathProgramCache]: Analyzing trace with hash 505407985, now seen corresponding path program 1 times [2020-10-06 00:41:25,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:25,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790516539] [2020-10-06 00:41:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:25,643 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 00:41:25,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790516539] [2020-10-06 00:41:25,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:25,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:25,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1745431939] [2020-10-06 00:41:25,644 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:25,646 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:25,648 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 00:41:25,648 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:25,649 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:25,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:25,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:25,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:25,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:25,650 INFO L87 Difference]: Start difference. First operand 528 states and 1614 transitions. Second operand 3 states. [2020-10-06 00:41:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:25,667 INFO L93 Difference]: Finished difference Result 518 states and 1576 transitions. [2020-10-06 00:41:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:25,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 00:41:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:25,673 INFO L225 Difference]: With dead ends: 518 [2020-10-06 00:41:25,673 INFO L226 Difference]: Without dead ends: 518 [2020-10-06 00:41:25,674 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 00:41:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-10-06 00:41:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-10-06 00:41:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-06 00:41:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 1576 transitions. [2020-10-06 00:41:25,694 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 1576 transitions. Word has length 10 [2020-10-06 00:41:25,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:25,698 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 1576 transitions. [2020-10-06 00:41:25,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:25,699 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 1576 transitions. [2020-10-06 00:41:25,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:41:25,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:25,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:25,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:41:25,709 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 00:41:25,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:25,709 INFO L82 PathProgramCache]: Analyzing trace with hash 505408109, now seen corresponding path program 1 times [2020-10-06 00:41:25,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:25,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515251325] [2020-10-06 00:41:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:25,812 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 00:41:25,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515251325] [2020-10-06 00:41:25,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:25,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:25,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1025625197] [2020-10-06 00:41:25,816 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:25,818 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:25,821 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 00:41:25,821 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:25,869 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:25,938 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:25,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:25,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:25,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:25,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:25,939 INFO L87 Difference]: Start difference. First operand 518 states and 1576 transitions. Second operand 3 states. [2020-10-06 00:41:25,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:25,978 INFO L93 Difference]: Finished difference Result 500 states and 1513 transitions. [2020-10-06 00:41:25,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:25,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 00:41:25,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:25,983 INFO L225 Difference]: With dead ends: 500 [2020-10-06 00:41:25,984 INFO L226 Difference]: Without dead ends: 500 [2020-10-06 00:41:25,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 00:41:25,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-06 00:41:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2020-10-06 00:41:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2020-10-06 00:41:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 1513 transitions. [2020-10-06 00:41:26,006 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 1513 transitions. Word has length 10 [2020-10-06 00:41:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:26,006 INFO L479 AbstractCegarLoop]: Abstraction has 500 states and 1513 transitions. [2020-10-06 00:41:26,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 1513 transitions. [2020-10-06 00:41:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:41:26,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:26,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:26,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:41:26,015 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 00:41:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:26,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1512221684, now seen corresponding path program 1 times [2020-10-06 00:41:26,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:26,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559451272] [2020-10-06 00:41:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:26,129 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 00:41:26,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559451272] [2020-10-06 00:41:26,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:26,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:26,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [445034394] [2020-10-06 00:41:26,131 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:26,133 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:26,136 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-06 00:41:26,136 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:26,169 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:26,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:26,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:26,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:26,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:26,170 INFO L87 Difference]: Start difference. First operand 500 states and 1513 transitions. Second operand 3 states. [2020-10-06 00:41:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:26,183 INFO L93 Difference]: Finished difference Result 482 states and 1450 transitions. [2020-10-06 00:41:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:26,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 00:41:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:26,188 INFO L225 Difference]: With dead ends: 482 [2020-10-06 00:41:26,189 INFO L226 Difference]: Without dead ends: 482 [2020-10-06 00:41:26,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 00:41:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-06 00:41:26,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-10-06 00:41:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-06 00:41:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1450 transitions. [2020-10-06 00:41:26,208 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1450 transitions. Word has length 11 [2020-10-06 00:41:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:26,209 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1450 transitions. [2020-10-06 00:41:26,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1450 transitions. [2020-10-06 00:41:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:41:26,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:26,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:26,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:41:26,211 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 00:41:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash 365755524, now seen corresponding path program 1 times [2020-10-06 00:41:26,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:26,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166473377] [2020-10-06 00:41:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:26,324 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 00:41:26,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166473377] [2020-10-06 00:41:26,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:26,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:26,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1742244587] [2020-10-06 00:41:26,325 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:26,328 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:26,332 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:41:26,332 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:26,356 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:41:26,357 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:26,358 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:41:26,358 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:26,361 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:26,362 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:26,373 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:26,383 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:41:26,392 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:26,401 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:41:26,504 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9420#(and (= ~y~0 ~y$w_buff0~0) (= ~y$w_buff0~0 0) (or (= (mod ~y$w_buff1_used~0 256) 0) (= ~y$w_buff1~0 ~y$w_buff0~0)) (= ~y$r_buff0_thd0~0 0))] [2020-10-06 00:41:26,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 00:41:26,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:26,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 00:41:26,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:41:26,506 INFO L87 Difference]: Start difference. First operand 482 states and 1450 transitions. Second operand 6 states. [2020-10-06 00:41:26,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:26,597 INFO L93 Difference]: Finished difference Result 470 states and 1406 transitions. [2020-10-06 00:41:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:41:26,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-06 00:41:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:26,603 INFO L225 Difference]: With dead ends: 470 [2020-10-06 00:41:26,603 INFO L226 Difference]: Without dead ends: 470 [2020-10-06 00:41:26,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:41:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-06 00:41:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-06 00:41:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-06 00:41:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1406 transitions. [2020-10-06 00:41:26,622 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1406 transitions. Word has length 12 [2020-10-06 00:41:26,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:26,622 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1406 transitions. [2020-10-06 00:41:26,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 00:41:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1406 transitions. [2020-10-06 00:41:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:41:26,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:26,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:26,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:41:26,624 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 00:41:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:26,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1546482384, now seen corresponding path program 1 times [2020-10-06 00:41:26,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:26,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452844424] [2020-10-06 00:41:26,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:26,696 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 00:41:26,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452844424] [2020-10-06 00:41:26,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:26,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:26,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [183832446] [2020-10-06 00:41:26,698 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:26,700 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:26,705 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-06 00:41:26,705 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:26,750 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:41:26,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:41:26,761 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:41:26,768 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-10-06 00:41:26,777 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:26,784 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:26,790 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:41:26,793 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:41:26,812 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10838#(and (= ~y~0 1) (= ~y$r_buff0_thd0~0 0))] [2020-10-06 00:41:26,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 00:41:26,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:26,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 00:41:26,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:41:26,813 INFO L87 Difference]: Start difference. First operand 470 states and 1406 transitions. Second operand 6 states. [2020-10-06 00:41:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:26,922 INFO L93 Difference]: Finished difference Result 494 states and 1464 transitions. [2020-10-06 00:41:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:41:26,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-06 00:41:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:26,927 INFO L225 Difference]: With dead ends: 494 [2020-10-06 00:41:26,928 INFO L226 Difference]: Without dead ends: 494 [2020-10-06 00:41:26,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:41:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-06 00:41:26,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 486. [2020-10-06 00:41:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-10-06 00:41:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1446 transitions. [2020-10-06 00:41:26,947 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1446 transitions. Word has length 13 [2020-10-06 00:41:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:26,947 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 1446 transitions. [2020-10-06 00:41:26,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 00:41:26,948 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1446 transitions. [2020-10-06 00:41:26,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 00:41:26,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:26,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:26,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:41:26,950 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 00:41:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:26,951 INFO L82 PathProgramCache]: Analyzing trace with hash -697643707, now seen corresponding path program 1 times [2020-10-06 00:41:26,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:26,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444532051] [2020-10-06 00:41:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:27,111 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 00:41:27,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444532051] [2020-10-06 00:41:27,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:27,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:27,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1454937544] [2020-10-06 00:41:27,113 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:27,116 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:27,120 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-06 00:41:27,120 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:27,147 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:41:27,152 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:27,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:41:27,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:27,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:41:27,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:41:27,153 INFO L87 Difference]: Start difference. First operand 486 states and 1446 transitions. Second operand 4 states. [2020-10-06 00:41:27,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:27,184 INFO L93 Difference]: Finished difference Result 306 states and 854 transitions. [2020-10-06 00:41:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:41:27,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 00:41:27,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:27,185 INFO L225 Difference]: With dead ends: 306 [2020-10-06 00:41:27,185 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:41:27,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:41:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:41:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:41:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:41:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:41:27,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 00:41:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:27,187 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:41:27,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:41:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:41:27,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:41:27,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 00:41:27,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:41:27 BasicIcfg [2020-10-06 00:41:27,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:41:27,194 INFO L168 Benchmark]: Toolchain (without parser) took 13382.20 ms. Allocated memory was 140.0 MB in the beginning and 324.0 MB in the end (delta: 184.0 MB). Free memory was 100.0 MB in the beginning and 246.9 MB in the end (delta: -146.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,195 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 927.24 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 99.8 MB in the beginning and 158.8 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.06 ms. Allocated memory is still 206.0 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,197 INFO L168 Benchmark]: Boogie Preprocessor took 44.33 ms. Allocated memory is still 206.0 MB. Free memory was 156.1 MB in the beginning and 153.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,198 INFO L168 Benchmark]: RCFGBuilder took 2109.94 ms. Allocated memory was 206.0 MB in the beginning and 245.9 MB in the end (delta: 39.8 MB). Free memory was 153.3 MB in the beginning and 190.7 MB in the end (delta: -37.4 MB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,199 INFO L168 Benchmark]: TraceAbstraction took 10211.67 ms. Allocated memory was 245.9 MB in the beginning and 324.0 MB in the end (delta: 78.1 MB). Free memory was 190.7 MB in the beginning and 246.9 MB in the end (delta: -56.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:27,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 927.24 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 99.8 MB in the beginning and 158.8 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.06 ms. Allocated memory is still 206.0 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.33 ms. Allocated memory is still 206.0 MB. Free memory was 156.1 MB in the beginning and 153.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2109.94 ms. Allocated memory was 206.0 MB in the beginning and 245.9 MB in the end (delta: 39.8 MB). Free memory was 153.3 MB in the beginning and 190.7 MB in the end (delta: -37.4 MB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10211.67 ms. Allocated memory was 245.9 MB in the beginning and 324.0 MB in the end (delta: 78.1 MB). Free memory was 190.7 MB in the beginning and 246.9 MB in the end (delta: -56.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 7.4s, 103 ProgramPointsBefore, 36 ProgramPointsAfterwards, 95 TransitionsBefore, 26 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 8 FixpointIterations, 33 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 889 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4375 CheckedPairsTotal, 80 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, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 163 SDtfs, 111 SDslu, 163 SDs, 0 SdLazy, 94 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=750occurred 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, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 4976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...