/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:11:23,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:11:23,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:11:23,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:11:23,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:11:23,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:11:23,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:11:23,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:11:23,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:11:23,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:11:23,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:11:23,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:11:23,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:11:23,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:11:23,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:11:23,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:11:23,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:11:23,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:11:23,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:11:23,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:11:23,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:11:23,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:11:23,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:11:23,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:11:23,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:11:23,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:11:23,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:11:23,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:11:23,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:11:23,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:11:23,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:11:23,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:11:23,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:11:23,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:11:23,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:11:23,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:11:23,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:11:23,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:11:23,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:11:23,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:11:23,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:11:23,567 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-SP.epf [2020-10-22 02:11:23,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:11:23,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:11:23,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:11:23,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:11:23,593 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:11:23,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:11:23,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:11:23,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:11:23,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:11:23,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:11:23,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:11:23,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:11:23,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:11:23,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:11:23,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:11:23,595 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:11:23,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:11:23,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:11:23,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:11:23,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:11:23,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:11:23,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:11:23,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:11:23,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:11:23,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:11:23,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:11:23,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:11:23,597 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:11:23,597 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:11:23,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:11:23,598 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:11:23,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:11:23,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:11:23,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:11:23,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:11:23,950 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:11:23,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-22 02:11:24,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fbbcdca/5f95b6347ac84ba2a40fb7cb9151d492/FLAG2bfde9405 [2020-10-22 02:11:24,636 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:11:24,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-22 02:11:24,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fbbcdca/5f95b6347ac84ba2a40fb7cb9151d492/FLAG2bfde9405 [2020-10-22 02:11:24,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fbbcdca/5f95b6347ac84ba2a40fb7cb9151d492 [2020-10-22 02:11:24,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:11:24,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:11:24,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:11:24,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:11:24,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:11:24,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:11:24" (1/1) ... [2020-10-22 02:11:24,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47737658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:24, skipping insertion in model container [2020-10-22 02:11:24,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:11:24" (1/1) ... [2020-10-22 02:11:24,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:11:25,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:11:25,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:11:25,441 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:11:25,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:11:25,602 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:11:25,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25 WrapperNode [2020-10-22 02:11:25,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:11:25,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:11:25,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:11:25,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:11:25,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:11:25,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:11:25,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:11:25,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:11:25,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (1/1) ... [2020-10-22 02:11:25,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:11:25,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:11:25,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:11:25,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:11:25,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (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 [2020-10-22 02:11:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:11:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:11:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:11:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:11:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:11:25,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:11:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:11:25,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:11:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:11:25,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:11:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:11:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:11:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:11:25,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:11:25,788 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:11:26,213 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:11:26,213 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:11:26,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:11:26 BoogieIcfgContainer [2020-10-22 02:11:26,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:11:26,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:11:26,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:11:26,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:11:26,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:11:24" (1/3) ... [2020-10-22 02:11:26,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2d20af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:11:26, skipping insertion in model container [2020-10-22 02:11:26,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:11:25" (2/3) ... [2020-10-22 02:11:26,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2d20af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:11:26, skipping insertion in model container [2020-10-22 02:11:26,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:11:26" (3/3) ... [2020-10-22 02:11:26,230 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-10-22 02:11:26,247 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:11:26,248 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:11:26,259 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:11:26,260 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:11:26,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,293 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,294 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,299 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,299 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:11:26,312 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:11:26,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:11:26,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:11:26,348 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:11:26,348 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:11:26,348 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:11:26,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:11:26,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:11:26,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:11:26,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:11:26,362 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:11:26,362 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:11:26,364 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:11:26,366 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:11:26,414 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:11:26,415 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:11:26,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:11:26,424 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:11:26,837 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-22 02:11:27,788 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-10-22 02:11:28,246 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 02:11:28,346 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-22 02:11:28,347 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-22 02:11:28,354 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 02:11:28,384 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 02:11:28,387 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 02:11:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:11:28,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:28,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:28,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:28,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:28,402 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-22 02:11:28,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:28,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023221557] [2020-10-22 02:11:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:28,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023221557] [2020-10-22 02:11:28,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:28,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:11:28,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1577449966] [2020-10-22 02:11:28,598 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:28,601 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:28,615 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:11:28,616 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:28,620 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:28,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:11:28,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:28,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:11:28,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:11:28,640 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 02:11:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:28,671 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 02:11:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:11:28,673 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:11:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:28,690 INFO L225 Difference]: With dead ends: 362 [2020-10-22 02:11:28,690 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 02:11:28,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:11:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 02:11:28,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 02:11:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 02:11:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 02:11:28,789 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 02:11:28,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:28,790 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 02:11:28,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:11:28,790 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 02:11:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:11:28,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:28,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:28,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:11:28,793 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:28,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-22 02:11:28,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:28,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756624105] [2020-10-22 02:11:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:28,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756624105] [2020-10-22 02:11:28,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:28,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:11:28,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [43340455] [2020-10-22 02:11:28,926 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:28,927 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:28,929 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:11:28,929 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:28,930 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:28,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:11:28,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:28,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:11:28,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:11:28,932 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 02:11:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:28,965 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-22 02:11:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:11:28,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 02:11:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:28,969 INFO L225 Difference]: With dead ends: 330 [2020-10-22 02:11:28,969 INFO L226 Difference]: Without dead ends: 266 [2020-10-22 02:11:28,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:11:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-22 02:11:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-22 02:11:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-22 02:11:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-22 02:11:29,005 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-22 02:11:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:29,006 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-22 02:11:29,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:11:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-22 02:11:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:11:29,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:29,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:29,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:11:29,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:29,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:29,014 INFO L82 PathProgramCache]: Analyzing trace with hash 9178769, now seen corresponding path program 1 times [2020-10-22 02:11:29,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:29,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879235680] [2020-10-22 02:11:29,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:29,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879235680] [2020-10-22 02:11:29,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:29,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:11:29,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1027998638] [2020-10-22 02:11:29,154 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:29,155 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:29,157 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-22 02:11:29,157 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:29,198 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:29,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:11:29,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:29,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:11:29,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:11:29,200 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-22 02:11:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:29,260 INFO L93 Difference]: Finished difference Result 386 states and 1078 transitions. [2020-10-22 02:11:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:11:29,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:11:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:29,264 INFO L225 Difference]: With dead ends: 386 [2020-10-22 02:11:29,264 INFO L226 Difference]: Without dead ends: 242 [2020-10-22 02:11:29,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:11:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-22 02:11:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-22 02:11:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-22 02:11:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 666 transitions. [2020-10-22 02:11:29,281 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 666 transitions. Word has length 10 [2020-10-22 02:11:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:29,282 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 666 transitions. [2020-10-22 02:11:29,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:11:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 666 transitions. [2020-10-22 02:11:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:11:29,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:29,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:29,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:11:29,284 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:29,285 INFO L82 PathProgramCache]: Analyzing trace with hash 985984559, now seen corresponding path program 1 times [2020-10-22 02:11:29,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:29,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929347579] [2020-10-22 02:11:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:29,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929347579] [2020-10-22 02:11:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:11:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1554120610] [2020-10-22 02:11:29,354 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:29,355 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:29,357 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-22 02:11:29,358 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:29,399 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:29,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:11:29,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:29,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:11:29,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:11:29,400 INFO L87 Difference]: Start difference. First operand 242 states and 666 transitions. Second operand 5 states. [2020-10-22 02:11:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:29,460 INFO L93 Difference]: Finished difference Result 428 states and 1120 transitions. [2020-10-22 02:11:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:11:29,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-22 02:11:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:29,463 INFO L225 Difference]: With dead ends: 428 [2020-10-22 02:11:29,463 INFO L226 Difference]: Without dead ends: 242 [2020-10-22 02:11:29,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:11:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-22 02:11:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 170. [2020-10-22 02:11:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-22 02:11:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 424 transitions. [2020-10-22 02:11:29,474 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 424 transitions. Word has length 11 [2020-10-22 02:11:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:29,474 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 424 transitions. [2020-10-22 02:11:29,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:11:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 424 transitions. [2020-10-22 02:11:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:11:29,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:29,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:29,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:11:29,477 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:29,477 INFO L82 PathProgramCache]: Analyzing trace with hash 150494398, now seen corresponding path program 1 times [2020-10-22 02:11:29,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:29,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531566809] [2020-10-22 02:11:29,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:29,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:29,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531566809] [2020-10-22 02:11:29,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:29,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:11:29,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [410923554] [2020-10-22 02:11:29,524 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:29,525 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:29,527 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-22 02:11:29,528 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:29,554 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:29,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:11:29,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:29,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:11:29,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:11:29,555 INFO L87 Difference]: Start difference. First operand 170 states and 424 transitions. Second operand 4 states. [2020-10-22 02:11:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:29,591 INFO L93 Difference]: Finished difference Result 236 states and 573 transitions. [2020-10-22 02:11:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:11:29,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 02:11:29,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:29,593 INFO L225 Difference]: With dead ends: 236 [2020-10-22 02:11:29,593 INFO L226 Difference]: Without dead ends: 104 [2020-10-22 02:11:29,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:11:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-22 02:11:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-22 02:11:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-22 02:11:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 250 transitions. [2020-10-22 02:11:29,598 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 250 transitions. Word has length 12 [2020-10-22 02:11:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:29,599 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 250 transitions. [2020-10-22 02:11:29,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:11:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 250 transitions. [2020-10-22 02:11:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:11:29,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:11:29,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:11:29,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:11:29,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:11:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:11:29,601 INFO L82 PathProgramCache]: Analyzing trace with hash 370337002, now seen corresponding path program 1 times [2020-10-22 02:11:29,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:11:29,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404250384] [2020-10-22 02:11:29,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:11:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:11:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:11:29,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404250384] [2020-10-22 02:11:29,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:11:29,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:11:29,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1591782914] [2020-10-22 02:11:29,653 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:11:29,655 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:11:29,659 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-10-22 02:11:29,659 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:11:29,728 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:11:29,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:11:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:11:29,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:11:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:11:29,729 INFO L87 Difference]: Start difference. First operand 104 states and 250 transitions. Second operand 5 states. [2020-10-22 02:11:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:11:29,763 INFO L93 Difference]: Finished difference Result 86 states and 199 transitions. [2020-10-22 02:11:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:11:29,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-22 02:11:29,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:11:29,764 INFO L225 Difference]: With dead ends: 86 [2020-10-22 02:11:29,764 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:11:29,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:11:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:11:29,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:11:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:11:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:11:29,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-22 02:11:29,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:11:29,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:11:29,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:11:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:11:29,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:11:29,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:11:29,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:11:29 BasicIcfg [2020-10-22 02:11:29,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:11:29,773 INFO L168 Benchmark]: Toolchain (without parser) took 4832.73 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 100.3 MB in the beginning and 131.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,774 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.93 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.2 MB in the beginning and 155.2 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.24 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 152.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,777 INFO L168 Benchmark]: Boogie Preprocessor took 29.19 ms. Allocated memory is still 201.3 MB. Free memory was 152.9 MB in the beginning and 151.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,778 INFO L168 Benchmark]: RCFGBuilder took 519.97 ms. Allocated memory is still 201.3 MB. Free memory was 150.8 MB in the beginning and 126.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,779 INFO L168 Benchmark]: TraceAbstraction took 3549.81 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 126.7 MB in the beginning and 131.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:11:29,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.93 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.2 MB in the beginning and 155.2 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.24 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 152.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.19 ms. Allocated memory is still 201.3 MB. Free memory was 152.9 MB in the beginning and 151.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 519.97 ms. Allocated memory is still 201.3 MB. Free memory was 150.8 MB in the beginning and 126.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3549.81 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 126.7 MB in the beginning and 131.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 151 SDtfs, 144 SDslu, 210 SDs, 0 SdLazy, 73 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 72 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 1437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...