/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:18:24,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:18:24,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:18:24,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:18:24,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:18:24,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:18:24,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:18:24,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:18:24,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:18:24,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:18:24,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:18:24,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:18:24,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:18:24,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:18:24,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:18:24,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:18:24,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:18:24,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:18:24,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:18:24,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:18:24,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:18:24,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:18:24,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:18:24,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:18:24,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:18:24,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:18:24,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:18:24,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:18:24,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:18:24,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:18:24,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:18:24,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:18:24,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:18:24,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:18:24,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:18:24,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:18:24,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:18:24,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:18:24,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:18:24,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:18:24,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:18:24,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:18:24,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:18:24,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:18:24,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:18:24,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:18:24,311 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:18:24,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:18:24,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:18:24,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:18:24,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:18:24,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:18:24,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:18:24,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:18:24,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:18:24,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:18:24,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:18:24,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:18:24,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:18:24,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:18:24,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:18:24,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:18:24,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:18:24,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:24,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:18:24,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:18:24,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:18:24,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:18:24,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:18:24,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:18:24,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:18:24,661 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:18:24,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-10-16 11:18:24,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d0ab03e/beef71372b4943eebd9ba43fdc6b918e/FLAG051c65779 [2020-10-16 11:18:25,206 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:18:25,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-10-16 11:18:25,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d0ab03e/beef71372b4943eebd9ba43fdc6b918e/FLAG051c65779 [2020-10-16 11:18:25,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d0ab03e/beef71372b4943eebd9ba43fdc6b918e [2020-10-16 11:18:25,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:18:25,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:18:25,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:25,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:18:25,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:18:25,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:25" (1/1) ... [2020-10-16 11:18:25,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f018203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:25, skipping insertion in model container [2020-10-16 11:18:25,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:25" (1/1) ... [2020-10-16 11:18:25,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:18:25,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:18:26,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:26,163 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:18:26,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:26,311 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:18:26,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26 WrapperNode [2020-10-16 11:18:26,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:26,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:26,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:18:26,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:18:26,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:26,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:18:26,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:18:26,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:18:26,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... [2020-10-16 11:18:26,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:18:26,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:18:26,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:18:26,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:18:26,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:18:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:18:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:18:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:18:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:18:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:18:26,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:18:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:18:26,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:18:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:18:26,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:18:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:18:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:18:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:18:26,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:18:26,834 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:18:26,834 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:18:26,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:26 BoogieIcfgContainer [2020-10-16 11:18:26,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:18:26,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:18:26,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:18:26,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:18:26,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:18:25" (1/3) ... [2020-10-16 11:18:26,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:26, skipping insertion in model container [2020-10-16 11:18:26,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:26" (2/3) ... [2020-10-16 11:18:26,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:26, skipping insertion in model container [2020-10-16 11:18:26,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:26" (3/3) ... [2020-10-16 11:18:26,846 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-10-16 11:18:26,856 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:18:26,857 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:18:26,864 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:18:26,865 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:18:26,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,905 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,928 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,930 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,935 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,935 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:26,944 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:18:26,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:18:26,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:18:26,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:18:26,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:18:26,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:18:26,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:18:26,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:18:26,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:18:26,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:18:26,993 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:18:26,996 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:26,999 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:27,001 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:27,046 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 11:18:27,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:18:27,052 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. [2020-10-16 11:18:27,054 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-16 11:18:28,563 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-16 11:18:28,564 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 11:18:28,571 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 11:18:28,596 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-16 11:18:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-16 11:18:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:18:28,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:28,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:28,607 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:28,614 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-16 11:18:28,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:28,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460713679] [2020-10-16 11:18:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:28,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460713679] [2020-10-16 11:18:28,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:28,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:28,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714225434] [2020-10-16 11:18:28,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:28,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:28,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:28,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:28,889 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-16 11:18:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:28,950 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-16 11:18:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:28,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:18:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:28,978 INFO L225 Difference]: With dead ends: 222 [2020-10-16 11:18:28,978 INFO L226 Difference]: Without dead ends: 174 [2020-10-16 11:18:28,981 INFO L677 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 [2020-10-16 11:18:29,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-16 11:18:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-16 11:18:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-16 11:18:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-16 11:18:29,056 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-16 11:18:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,057 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-16 11:18:29,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-16 11:18:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:18:29,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:18:29,060 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-16 11:18:29,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227349142] [2020-10-16 11:18:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227349142] [2020-10-16 11:18:29,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532556435] [2020-10-16 11:18:29,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,185 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-16 11:18:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,212 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-16 11:18:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:29,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:18:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,215 INFO L225 Difference]: With dead ends: 204 [2020-10-16 11:18:29,215 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 11:18:29,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 11:18:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 11:18:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 11:18:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-16 11:18:29,229 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-16 11:18:29,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,230 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-16 11:18:29,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-16 11:18:29,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:18:29,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:18:29,232 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,232 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-16 11:18:29,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126556156] [2020-10-16 11:18:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126556156] [2020-10-16 11:18:29,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:29,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287306409] [2020-10-16 11:18:29,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:29,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:29,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:29,307 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-16 11:18:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,317 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-16 11:18:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:29,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:18:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,319 INFO L225 Difference]: With dead ends: 106 [2020-10-16 11:18:29,319 INFO L226 Difference]: Without dead ends: 106 [2020-10-16 11:18:29,320 INFO L677 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 [2020-10-16 11:18:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-16 11:18:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-16 11:18:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-16 11:18:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-16 11:18:29,331 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-16 11:18:29,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,331 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-16 11:18:29,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-16 11:18:29,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:29,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:18:29,334 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,334 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-16 11:18:29,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722496753] [2020-10-16 11:18:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722496753] [2020-10-16 11:18:29,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116156318] [2020-10-16 11:18:29,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,389 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-16 11:18:29,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,411 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-16 11:18:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:29,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,413 INFO L225 Difference]: With dead ends: 138 [2020-10-16 11:18:29,413 INFO L226 Difference]: Without dead ends: 60 [2020-10-16 11:18:29,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-16 11:18:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-16 11:18:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-16 11:18:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-16 11:18:29,420 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-16 11:18:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,421 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-16 11:18:29,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-16 11:18:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:29,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:18:29,423 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-16 11:18:29,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087647645] [2020-10-16 11:18:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087647645] [2020-10-16 11:18:29,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73653282] [2020-10-16 11:18:29,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:29,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:29,513 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-16 11:18:29,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,551 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-16 11:18:29,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:18:29,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,552 INFO L225 Difference]: With dead ends: 73 [2020-10-16 11:18:29,552 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 11:18:29,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 11:18:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 11:18:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 11:18:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-16 11:18:29,558 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-16 11:18:29,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,559 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-16 11:18:29,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-16 11:18:29,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:18:29,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:18:29,561 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-16 11:18:29,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456042020] [2020-10-16 11:18:29,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456042020] [2020-10-16 11:18:29,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:18:29,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857214840] [2020-10-16 11:18:29,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:18:29,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:18:29,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:29,654 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-16 11:18:29,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,695 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-16 11:18:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:29,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:18:29,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,697 INFO L225 Difference]: With dead ends: 53 [2020-10-16 11:18:29,697 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 11:18:29,697 INFO L677 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 [2020-10-16 11:18:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 11:18:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 11:18:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 11:18:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-16 11:18:29,702 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-16 11:18:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,702 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-16 11:18:29,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:18:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-16 11:18:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:18:29,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:18:29,704 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-16 11:18:29,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600982743] [2020-10-16 11:18:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600982743] [2020-10-16 11:18:29,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:18:29,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150130686] [2020-10-16 11:18:29,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:18:29,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:18:29,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:29,817 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-16 11:18:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,863 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-16 11:18:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:18:29,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:18:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,865 INFO L225 Difference]: With dead ends: 35 [2020-10-16 11:18:29,865 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 11:18:29,866 INFO L677 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 [2020-10-16 11:18:29,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 11:18:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 11:18:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 11:18:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-16 11:18:29,869 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-16 11:18:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,870 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-16 11:18:29,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:18:29,870 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-16 11:18:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:18:29,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:29,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:29,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:18:29,871 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:29,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:29,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-16 11:18:29,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:29,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987996466] [2020-10-16 11:18:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:29,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987996466] [2020-10-16 11:18:29,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:29,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:29,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194618206] [2020-10-16 11:18:29,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:29,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:29,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:29,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:29,903 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-16 11:18:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:29,908 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-16 11:18:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:29,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 11:18:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:29,909 INFO L225 Difference]: With dead ends: 28 [2020-10-16 11:18:29,909 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:18:29,910 INFO L677 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 [2020-10-16 11:18:29,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:18:29,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:18:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:18:29,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:18:29,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 11:18:29,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:29,911 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:18:29,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:29,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:18:29,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:18:29,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:18:29,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:18:29 BasicIcfg [2020-10-16 11:18:29,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:18:29,918 INFO L168 Benchmark]: Toolchain (without parser) took 4349.68 ms. Allocated memory was 146.3 MB in the beginning and 249.0 MB in the end (delta: 102.8 MB). Free memory was 101.2 MB in the beginning and 197.7 MB in the end (delta: -96.6 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:29,919 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:29,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.49 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 160.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:29,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.27 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:29,922 INFO L168 Benchmark]: Boogie Preprocessor took 31.02 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:29,923 INFO L168 Benchmark]: RCFGBuilder took 440.32 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:29,924 INFO L168 Benchmark]: TraceAbstraction took 3077.33 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 134.1 MB in the beginning and 197.7 MB in the end (delta: -63.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:29,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.49 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 160.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.27 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.02 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.32 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 134.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3077.33 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 134.1 MB in the beginning and 197.7 MB in the end (delta: -63.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 MoverChecksTotal - 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: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 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...