/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/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:00:33,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:00:33,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:00:33,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:00:33,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:00:33,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:00:33,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:00:33,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:00:33,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:00:33,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:00:33,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:00:33,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:00:33,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:00:33,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:00:33,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:00:33,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:00:33,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:00:33,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:00:33,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:00:33,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:00:33,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:00:33,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:00:33,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:00:33,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:00:33,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:00:33,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:00:33,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:00:33,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:00:33,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:00:33,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:00:33,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:00:33,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:00:33,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:00:33,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:00:33,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:00:33,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:00:33,347 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 01:00:33,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:00:33,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:00:33,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:00:33,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:00:33,385 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:00:33,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:00:33,386 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:00:33,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:00:33,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:00:33,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:00:33,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:00:33,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:00:33,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:00:33,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:00:33,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:00:33,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:00:33,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:00:33,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:00:33,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:00:33,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:00:33,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:00:33,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:00:33,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:00:33,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:00:33,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:00:33,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:00:33,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:00:33,391 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:00:33,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:00:33,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:00:33,392 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:00:33,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:00:33,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:00:33,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:00:33,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:00:33,687 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:00:33,687 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-06 01:00:33,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d8155db/e30b4abf2e964436b0ba1a3e339c9463/FLAGa51383d9e [2020-10-06 01:00:34,221 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:00:34,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-06 01:00:34,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d8155db/e30b4abf2e964436b0ba1a3e339c9463/FLAGa51383d9e [2020-10-06 01:00:34,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d8155db/e30b4abf2e964436b0ba1a3e339c9463 [2020-10-06 01:00:34,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:00:34,593 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:00:34,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:00:34,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:00:34,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:00:34,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:00:34" (1/1) ... [2020-10-06 01:00:34,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5624ee08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:34, skipping insertion in model container [2020-10-06 01:00:34,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:00:34" (1/1) ... [2020-10-06 01:00:34,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:00:34,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:00:35,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:00:35,146 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:00:35,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:00:35,267 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:00:35,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35 WrapperNode [2020-10-06 01:00:35,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:00:35,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:00:35,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:00:35,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:00:35,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:00:35,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:00:35,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:00:35,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:00:35,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (1/1) ... [2020-10-06 01:00:35,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:00:35,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:00:35,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:00:35,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:00:35,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (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 01:00:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:00:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:00:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:00:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:00:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:00:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:00:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:00:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:00:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:00:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:00:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:00:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:00:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:00:35,433 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 01:00:35,740 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:00:35,740 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:00:35,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:00:35 BoogieIcfgContainer [2020-10-06 01:00:35,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:00:35,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:00:35,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:00:35,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:00:35,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:00:34" (1/3) ... [2020-10-06 01:00:35,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ce065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:00:35, skipping insertion in model container [2020-10-06 01:00:35,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:35" (2/3) ... [2020-10-06 01:00:35,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ce065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:00:35, skipping insertion in model container [2020-10-06 01:00:35,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:00:35" (3/3) ... [2020-10-06 01:00:35,752 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-10-06 01:00:35,763 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:00:35,764 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:00:35,771 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:00:35,772 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:00:35,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,804 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,804 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,806 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,809 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,809 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,820 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:35,840 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:00:35,862 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:00:35,863 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:00:35,863 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:00:35,863 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:00:35,863 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:00:35,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:00:35,864 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:00:35,864 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:00:35,881 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-06 01:00:35,883 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:00:35,937 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:00:35,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:00:35,942 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:00:35,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:00:35,967 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:00:35,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:00:35,968 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:00:35,970 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:00:35,971 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:00:37,325 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-10-06 01:00:37,325 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-06 01:00:37,329 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-06 01:00:37,371 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-06 01:00:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-06 01:00:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:00:37,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:37,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:37,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:37,395 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-06 01:00:37,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:37,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036495593] [2020-10-06 01:00:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:37,625 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 01:00:37,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036495593] [2020-10-06 01:00:37,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:37,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:37,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [427293747] [2020-10-06 01:00:37,629 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:37,632 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:37,645 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:00:37,646 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:37,650 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:37,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:37,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:37,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:37,667 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-06 01:00:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:37,706 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-06 01:00:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:37,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:00:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:37,727 INFO L225 Difference]: With dead ends: 290 [2020-10-06 01:00:37,727 INFO L226 Difference]: Without dead ends: 226 [2020-10-06 01:00:37,729 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 01:00:37,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-06 01:00:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-06 01:00:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-06 01:00:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-06 01:00:37,796 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-06 01:00:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:37,797 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-06 01:00:37,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-06 01:00:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:00:37,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:37,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:37,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:00:37,800 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:37,800 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-06 01:00:37,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:37,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411163268] [2020-10-06 01:00:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:37,862 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 01:00:37,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411163268] [2020-10-06 01:00:37,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:37,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:37,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [412766754] [2020-10-06 01:00:37,863 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:37,864 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:37,866 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-06 01:00:37,866 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:37,910 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:37,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:37,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:37,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:37,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:37,912 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-06 01:00:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:37,922 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-06 01:00:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:37,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:00:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:37,925 INFO L225 Difference]: With dead ends: 212 [2020-10-06 01:00:37,925 INFO L226 Difference]: Without dead ends: 212 [2020-10-06 01:00:37,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 01:00:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-06 01:00:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-06 01:00:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-06 01:00:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-06 01:00:37,946 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-06 01:00:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:37,946 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-06 01:00:37,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-06 01:00:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:00:37,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:37,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:37,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:00:37,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-06 01:00:37,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:37,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786898155] [2020-10-06 01:00:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,005 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 01:00:38,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786898155] [2020-10-06 01:00:38,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:38,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1911694518] [2020-10-06 01:00:38,007 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,008 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,010 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-10-06 01:00:38,010 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,041 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:38,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:38,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:38,042 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-06 01:00:38,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,070 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-10-06 01:00:38,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:00:38,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 01:00:38,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,073 INFO L225 Difference]: With dead ends: 293 [2020-10-06 01:00:38,073 INFO L226 Difference]: Without dead ends: 197 [2020-10-06 01:00:38,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 01:00:38,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-06 01:00:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-06 01:00:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-06 01:00:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-10-06 01:00:38,087 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-10-06 01:00:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,088 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-10-06 01:00:38,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-10-06 01:00:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:00:38,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:00:38,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-10-06 01:00:38,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745851794] [2020-10-06 01:00:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,128 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 01:00:38,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745851794] [2020-10-06 01:00:38,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:38,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1845414031] [2020-10-06 01:00:38,130 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,131 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,134 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-06 01:00:38,134 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,139 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:38,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:38,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:38,141 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-10-06 01:00:38,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,153 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-10-06 01:00:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:38,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 01:00:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,156 INFO L225 Difference]: With dead ends: 269 [2020-10-06 01:00:38,156 INFO L226 Difference]: Without dead ends: 209 [2020-10-06 01:00:38,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 01:00:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-06 01:00:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-10-06 01:00:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-06 01:00:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-10-06 01:00:38,166 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-10-06 01:00:38,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,167 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-10-06 01:00:38,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-10-06 01:00:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:00:38,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:00:38,169 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-10-06 01:00:38,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761869099] [2020-10-06 01:00:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,208 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 01:00:38,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761869099] [2020-10-06 01:00:38,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:00:38,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [306629863] [2020-10-06 01:00:38,210 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,211 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,214 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-10-06 01:00:38,214 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,291 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:38,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:38,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:38,292 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-10-06 01:00:38,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,331 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-10-06 01:00:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:00:38,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:00:38,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,333 INFO L225 Difference]: With dead ends: 250 [2020-10-06 01:00:38,334 INFO L226 Difference]: Without dead ends: 158 [2020-10-06 01:00:38,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 01:00:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-06 01:00:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-06 01:00:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-06 01:00:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-10-06 01:00:38,340 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-10-06 01:00:38,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,340 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-10-06 01:00:38,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:38,340 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-10-06 01:00:38,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:00:38,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:00:38,342 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-06 01:00:38,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155017196] [2020-10-06 01:00:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,375 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 01:00:38,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155017196] [2020-10-06 01:00:38,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:38,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [357724791] [2020-10-06 01:00:38,376 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,378 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,379 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-06 01:00:38,379 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,401 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:38,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:38,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:38,402 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-10-06 01:00:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,407 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-10-06 01:00:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:38,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 01:00:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,409 INFO L225 Difference]: With dead ends: 138 [2020-10-06 01:00:38,409 INFO L226 Difference]: Without dead ends: 138 [2020-10-06 01:00:38,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 01:00:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-06 01:00:38,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-06 01:00:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-06 01:00:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-10-06 01:00:38,415 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-10-06 01:00:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,415 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-10-06 01:00:38,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-10-06 01:00:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:00:38,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:00:38,417 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-06 01:00:38,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738350896] [2020-10-06 01:00:38,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,445 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 01:00:38,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738350896] [2020-10-06 01:00:38,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:38,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1731457342] [2020-10-06 01:00:38,446 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,448 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,450 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-06 01:00:38,450 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,458 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:38,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:38,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:38,459 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-10-06 01:00:38,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,474 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-10-06 01:00:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:38,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 01:00:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,475 INFO L225 Difference]: With dead ends: 146 [2020-10-06 01:00:38,475 INFO L226 Difference]: Without dead ends: 56 [2020-10-06 01:00:38,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 01:00:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-06 01:00:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-06 01:00:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-06 01:00:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-10-06 01:00:38,479 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-10-06 01:00:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,479 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-10-06 01:00:38,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-10-06 01:00:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:00:38,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:00:38,480 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,481 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-10-06 01:00:38,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158596128] [2020-10-06 01:00:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,509 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 01:00:38,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158596128] [2020-10-06 01:00:38,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:00:38,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [64750320] [2020-10-06 01:00:38,511 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,512 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,516 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-06 01:00:38,516 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,524 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:38,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:38,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:38,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:38,525 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-10-06 01:00:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,542 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-10-06 01:00:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:00:38,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:00:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,543 INFO L225 Difference]: With dead ends: 64 [2020-10-06 01:00:38,543 INFO L226 Difference]: Without dead ends: 52 [2020-10-06 01:00:38,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 01:00:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-06 01:00:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-06 01:00:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-06 01:00:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-06 01:00:38,546 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-10-06 01:00:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,546 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-06 01:00:38,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-06 01:00:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:00:38,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:00:38,548 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,548 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-10-06 01:00:38,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110473065] [2020-10-06 01:00:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,596 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 01:00:38,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110473065] [2020-10-06 01:00:38,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:38,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1945105662] [2020-10-06 01:00:38,598 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,599 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,603 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-06 01:00:38,603 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,622 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,647 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,664 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,680 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,692 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,696 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-06 01:00:38,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:00:38,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:00:38,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:00:38,697 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-10-06 01:00:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,740 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-10-06 01:00:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:00:38,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 01:00:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,741 INFO L225 Difference]: With dead ends: 45 [2020-10-06 01:00:38,741 INFO L226 Difference]: Without dead ends: 31 [2020-10-06 01:00:38,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:00:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-06 01:00:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-06 01:00:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-06 01:00:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-10-06 01:00:38,743 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-10-06 01:00:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,744 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-10-06 01:00:38,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:00:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-10-06 01:00:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:00:38,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:38,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:38,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:00:38,745 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:38,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-06 01:00:38,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:38,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578610113] [2020-10-06 01:00:38,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:38,795 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 01:00:38,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578610113] [2020-10-06 01:00:38,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:38,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:00:38,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1505694969] [2020-10-06 01:00:38,797 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:38,799 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:38,802 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-10-06 01:00:38,803 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:38,827 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:38,843 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4931#(<= ~__unbuffered_cnt~0 0)] [2020-10-06 01:00:38,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:00:38,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:38,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:00:38,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:00:38,845 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-10-06 01:00:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:38,868 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-10-06 01:00:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:00:38,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-06 01:00:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:38,869 INFO L225 Difference]: With dead ends: 28 [2020-10-06 01:00:38,869 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:00:38,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:00:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:00:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:00:38,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:00:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:00:38,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-06 01:00:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:38,870 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:00:38,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:00:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:00:38,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:00:38,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:00:38,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:00:38 BasicIcfg [2020-10-06 01:00:38,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:00:38,878 INFO L168 Benchmark]: Toolchain (without parser) took 4284.19 ms. Allocated memory was 141.6 MB in the beginning and 245.9 MB in the end (delta: 104.3 MB). Free memory was 101.8 MB in the beginning and 103.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 102.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,878 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.06 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.6 MB in the beginning and 160.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.54 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,881 INFO L168 Benchmark]: Boogie Preprocessor took 31.90 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,882 INFO L168 Benchmark]: RCFGBuilder took 369.20 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,882 INFO L168 Benchmark]: TraceAbstraction took 3129.79 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 103.4 MB in the end (delta: 31.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:38,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.06 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.6 MB in the beginning and 160.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.54 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.90 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 369.20 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3129.79 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 103.4 MB in the end (delta: 31.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 197 SDtfs, 107 SDslu, 180 SDs, 0 SdLazy, 85 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...