/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:38:55,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:38:55,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:38:55,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:38:55,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:38:55,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:38:55,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:38:55,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:38:55,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:38:55,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:38:55,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:38:55,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:38:55,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:38:55,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:38:55,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:38:55,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:38:55,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:38:55,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:38:55,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:38:55,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:38:55,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:38:55,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:38:55,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:38:55,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:38:55,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:38:55,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:38:55,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:38:55,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:38:55,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:38:55,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:38:55,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:38:55,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:38:55,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:38:55,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:38:55,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:38:55,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:38:55,237 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.epf [2020-10-05 23:38:55,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:38:55,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:38:55,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:38:55,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:38:55,264 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:38:55,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:38:55,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:38:55,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:38:55,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:38:55,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:38:55,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:38:55,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:38:55,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:38:55,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:38:55,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:38:55,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:38:55,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:38:55,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:38:55,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:38:55,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:38:55,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:38:55,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:38:55,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:38:55,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:38:55,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:38:55,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:38:55,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:38:55,269 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:38:55,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:38:55,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:38:55,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:38:55,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:38:55,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:38:55,577 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:38:55,577 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-05 23:38:55,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b77671b/9b6e587f387740e5853ecc2311427a19/FLAGce5c0f0af [2020-10-05 23:38:56,200 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:38:56,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-05 23:38:56,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b77671b/9b6e587f387740e5853ecc2311427a19/FLAGce5c0f0af [2020-10-05 23:38:56,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b77671b/9b6e587f387740e5853ecc2311427a19 [2020-10-05 23:38:56,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:38:56,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:38:56,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:56,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:38:56,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:38:56,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:56" (1/1) ... [2020-10-05 23:38:56,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48403159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:56, skipping insertion in model container [2020-10-05 23:38:56,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:56" (1/1) ... [2020-10-05 23:38:56,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:38:56,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:38:56,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:56,952 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:38:57,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:57,185 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:38:57,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57 WrapperNode [2020-10-05 23:38:57,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:57,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:57,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:38:57,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:38:57,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:57,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:38:57,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:38:57,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:38:57,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (1/1) ... [2020-10-05 23:38:57,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:38:57,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:38:57,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:38:57,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:38:57,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (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 [2020-10-05 23:38:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:38:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:38:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:38:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:38:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:38:57,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:38:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:38:57,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:38:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:38:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:38:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:38:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:38:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:38:57,345 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:38:57,751 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:38:57,751 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:38:57,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:57 BoogieIcfgContainer [2020-10-05 23:38:57,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:38:57,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:38:57,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:38:57,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:38:57,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:38:56" (1/3) ... [2020-10-05 23:38:57,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c72768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:57, skipping insertion in model container [2020-10-05 23:38:57,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:57" (2/3) ... [2020-10-05 23:38:57,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c72768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:57, skipping insertion in model container [2020-10-05 23:38:57,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:57" (3/3) ... [2020-10-05 23:38:57,763 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-10-05 23:38:57,774 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:38:57,774 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:38:57,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:38:57,783 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:38:57,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,838 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,838 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,838 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,838 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,856 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,864 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,864 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,864 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,864 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:57,878 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:38:57,896 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:38:57,897 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:38:57,897 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:38:57,897 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:38:57,897 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:38:57,897 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:38:57,898 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:38:57,898 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:38:57,913 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-05 23:38:57,915 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 23:38:57,963 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 23:38:57,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:57,969 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 23:38:57,972 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 23:38:57,994 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 23:38:57,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:57,995 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 23:38:57,998 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-10-05 23:38:57,999 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:38:59,291 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-10-05 23:38:59,291 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-10-05 23:38:59,295 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-05 23:38:59,318 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-05 23:38:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-05 23:38:59,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:38:59,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:59,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:59,330 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:59,336 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-05 23:38:59,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:59,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779171585] [2020-10-05 23:38:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:59,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779171585] [2020-10-05 23:38:59,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:59,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:38:59,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240308253] [2020-10-05 23:38:59,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:59,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:59,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:59,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:59,612 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-05 23:38:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:59,656 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-05 23:38:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:59,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:38:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:59,673 INFO L225 Difference]: With dead ends: 222 [2020-10-05 23:38:59,673 INFO L226 Difference]: Without dead ends: 174 [2020-10-05 23:38:59,675 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 [2020-10-05 23:38:59,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-05 23:38:59,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-05 23:38:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-05 23:38:59,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-05 23:38:59,738 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-05 23:38:59,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:59,739 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-05 23:38:59,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-05 23:38:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:38:59,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:59,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:59,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:38:59,741 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:59,742 INFO L82 PathProgramCache]: Analyzing trace with hash -273417231, now seen corresponding path program 1 times [2020-10-05 23:38:59,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:59,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253465720] [2020-10-05 23:38:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:59,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253465720] [2020-10-05 23:38:59,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:59,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:59,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688970130] [2020-10-05 23:38:59,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:59,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:59,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:59,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:59,822 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-05 23:38:59,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:59,856 INFO L93 Difference]: Finished difference Result 240 states and 615 transitions. [2020-10-05 23:38:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:38:59,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:38:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:59,859 INFO L225 Difference]: With dead ends: 240 [2020-10-05 23:38:59,859 INFO L226 Difference]: Without dead ends: 138 [2020-10-05 23:38:59,860 INFO L675 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 [2020-10-05 23:38:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-05 23:38:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-05 23:38:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-05 23:38:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 351 transitions. [2020-10-05 23:38:59,876 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 351 transitions. Word has length 9 [2020-10-05 23:38:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:59,876 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 351 transitions. [2020-10-05 23:38:59,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-10-05 23:38:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:38:59,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:59,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:59,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:38:59,878 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:59,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1925064459, now seen corresponding path program 1 times [2020-10-05 23:38:59,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:59,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840072864] [2020-10-05 23:38:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:59,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840072864] [2020-10-05 23:38:59,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:59,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:38:59,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411415299] [2020-10-05 23:38:59,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:59,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:59,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:59,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:59,960 INFO L87 Difference]: Start difference. First operand 138 states and 351 transitions. Second operand 3 states. [2020-10-05 23:38:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:59,966 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-10-05 23:38:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:59,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 23:38:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:59,968 INFO L225 Difference]: With dead ends: 132 [2020-10-05 23:38:59,969 INFO L226 Difference]: Without dead ends: 132 [2020-10-05 23:38:59,969 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 [2020-10-05 23:38:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-05 23:38:59,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-05 23:38:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-05 23:38:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 332 transitions. [2020-10-05 23:38:59,981 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 332 transitions. Word has length 10 [2020-10-05 23:38:59,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:59,981 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 332 transitions. [2020-10-05 23:38:59,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-10-05 23:38:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:38:59,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:59,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:59,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:38:59,983 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:59,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:59,984 INFO L82 PathProgramCache]: Analyzing trace with hash 452543204, now seen corresponding path program 1 times [2020-10-05 23:38:59,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:59,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504063590] [2020-10-05 23:38:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:39:00,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504063590] [2020-10-05 23:39:00,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:00,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:00,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475347067] [2020-10-05 23:39:00,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:39:00,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:00,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:39:00,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:39:00,033 INFO L87 Difference]: Start difference. First operand 132 states and 332 transitions. Second operand 4 states. [2020-10-05 23:39:00,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:00,050 INFO L93 Difference]: Finished difference Result 144 states and 346 transitions. [2020-10-05 23:39:00,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:39:00,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 23:39:00,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:00,052 INFO L225 Difference]: With dead ends: 144 [2020-10-05 23:39:00,052 INFO L226 Difference]: Without dead ends: 60 [2020-10-05 23:39:00,053 INFO L675 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 [2020-10-05 23:39:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-05 23:39:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-05 23:39:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-05 23:39:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-05 23:39:00,058 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 11 [2020-10-05 23:39:00,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:00,059 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-05 23:39:00,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:39:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-05 23:39:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:39:00,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:00,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:00,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:39:00,060 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:00,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:00,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 1 times [2020-10-05 23:39:00,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:00,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941022665] [2020-10-05 23:39:00,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:39:00,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941022665] [2020-10-05 23:39:00,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:00,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:00,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199987677] [2020-10-05 23:39:00,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:39:00,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:00,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:39:00,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:39:00,183 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-05 23:39:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:00,215 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-05 23:39:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:39:00,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:39:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:00,216 INFO L225 Difference]: With dead ends: 73 [2020-10-05 23:39:00,216 INFO L226 Difference]: Without dead ends: 52 [2020-10-05 23:39:00,217 INFO L675 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 [2020-10-05 23:39:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-05 23:39:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-05 23:39:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-05 23:39:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-05 23:39:00,221 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-05 23:39:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:00,222 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-05 23:39:00,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:39:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-05 23:39:00,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:39:00,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:00,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:00,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:39:00,223 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:00,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:00,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-05 23:39:00,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:00,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966585699] [2020-10-05 23:39:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:39:00,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966585699] [2020-10-05 23:39:00,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:00,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:39:00,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35568880] [2020-10-05 23:39:00,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:39:00,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:00,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:39:00,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:39:00,281 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-05 23:39:00,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:00,322 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-05 23:39:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:39:00,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:39:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:00,324 INFO L225 Difference]: With dead ends: 53 [2020-10-05 23:39:00,324 INFO L226 Difference]: Without dead ends: 38 [2020-10-05 23:39:00,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:39:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-05 23:39:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-05 23:39:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-05 23:39:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-05 23:39:00,327 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-05 23:39:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:00,328 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-05 23:39:00,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:39:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-05 23:39:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:39:00,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:00,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:00,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:39:00,329 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:00,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:00,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-05 23:39:00,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:00,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876346098] [2020-10-05 23:39:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:39:00,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876346098] [2020-10-05 23:39:00,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:00,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:39:00,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205013612] [2020-10-05 23:39:00,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:39:00,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:00,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:39:00,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:39:00,406 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-05 23:39:00,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:00,457 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-05 23:39:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:39:00,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-05 23:39:00,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:00,459 INFO L225 Difference]: With dead ends: 35 [2020-10-05 23:39:00,459 INFO L226 Difference]: Without dead ends: 29 [2020-10-05 23:39:00,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:39:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-05 23:39:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-05 23:39:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-05 23:39:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-05 23:39:00,462 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-05 23:39:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:00,462 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-05 23:39:00,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:39:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-05 23:39:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 23:39:00,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:00,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:00,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:39:00,464 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:00,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-05 23:39:00,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:00,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827567085] [2020-10-05 23:39:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:39:00,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827567085] [2020-10-05 23:39:00,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:00,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:00,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484193387] [2020-10-05 23:39:00,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:39:00,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:00,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:39:00,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:00,493 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-05 23:39:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:00,501 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-05 23:39:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:39:00,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-05 23:39:00,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:00,502 INFO L225 Difference]: With dead ends: 28 [2020-10-05 23:39:00,502 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:39:00,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:39:00,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:39:00,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:39:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:39:00,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-05 23:39:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:00,504 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:39:00,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:39:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:39:00,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:39:00,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:39:00,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:39:00 BasicIcfg [2020-10-05 23:39:00,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:39:00,512 INFO L168 Benchmark]: Toolchain (without parser) took 4007.38 ms. Allocated memory was 140.5 MB in the beginning and 248.0 MB in the end (delta: 107.5 MB). Free memory was 102.2 MB in the beginning and 97.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,513 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.50 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 162.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.07 ms. Allocated memory is still 203.4 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,515 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,516 INFO L168 Benchmark]: RCFGBuilder took 485.32 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 136.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,517 INFO L168 Benchmark]: TraceAbstraction took 2753.18 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 135.9 MB in the beginning and 97.0 MB in the end (delta: 39.0 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:00,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.50 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 162.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.07 ms. Allocated memory is still 203.4 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 485.32 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 136.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2753.18 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 135.9 MB in the beginning and 97.0 MB in the end (delta: 39.0 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 606 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 129 SDtfs, 106 SDslu, 133 SDs, 0 SdLazy, 99 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2919 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...