/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:17,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:17,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:17,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:17,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:17,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:17,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:17,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:17,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:17,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:17,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:17,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:17,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:17,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:17,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:17,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:17,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:17,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:17,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:17,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:17,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:17,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:17,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:17,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:17,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:49:17,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:17,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:17,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:17,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:17,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:17,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:17,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:17,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:17,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:17,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:17,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:17,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:49:17,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:17,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:17,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:17,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:17,244 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:17,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:17,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:17,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:17,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:17,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:17,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:17,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:17,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:17,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:17,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:17,246 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:17,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:17,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:17,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:17,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:17,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:17,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:17,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:17,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:17,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:17,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:17,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:17,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:17,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:17,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:17,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:17,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:17,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:17,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:17,594 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:17,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-05 22:49:17,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60156a76e/76ceb1b0a9684fd68865ddba5cefc72c/FLAG9c145ee30 [2020-10-05 22:49:18,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:18,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-05 22:49:18,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60156a76e/76ceb1b0a9684fd68865ddba5cefc72c/FLAG9c145ee30 [2020-10-05 22:49:18,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60156a76e/76ceb1b0a9684fd68865ddba5cefc72c [2020-10-05 22:49:18,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:18,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:18,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:18,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:18,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:18,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:18" (1/1) ... [2020-10-05 22:49:18,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b6f441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:18, skipping insertion in model container [2020-10-05 22:49:18,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:18" (1/1) ... [2020-10-05 22:49:18,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:18,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:19,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:19,077 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:19,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:19,237 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:19,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19 WrapperNode [2020-10-05 22:49:19,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:19,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:19,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:19,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:19,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:19,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:19,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:19,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:19,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (1/1) ... [2020-10-05 22:49:19,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:19,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:19,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:19,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:19,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (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 22:49:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:19,390 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 22:49:19,762 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:19,763 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:19,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:19 BoogieIcfgContainer [2020-10-05 22:49:19,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:19,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:19,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:19,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:19,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:18" (1/3) ... [2020-10-05 22:49:19,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12db7be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:19, skipping insertion in model container [2020-10-05 22:49:19,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:19" (2/3) ... [2020-10-05 22:49:19,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12db7be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:19, skipping insertion in model container [2020-10-05 22:49:19,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:19" (3/3) ... [2020-10-05 22:49:19,774 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-10-05 22:49:19,784 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:19,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:19,792 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:19,793 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:19,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:19,859 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:49:19,879 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:49:19,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:49:19,880 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:49:19,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:49:19,880 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:49:19,880 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:49:19,881 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:49:19,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:49:19,897 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:19,899 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:19,950 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:19,950 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:19,955 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:19,958 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:19,979 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:19,979 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:19,980 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:19,982 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:49:19,983 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:49:21,688 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287 [2020-10-05 22:49:21,689 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-10-05 22:49:21,693 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-05 22:49:21,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:49:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:49:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:49:21,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:21,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:21,731 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:21,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:21,737 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-10-05 22:49:21,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:21,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969531501] [2020-10-05 22:49:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:21,962 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 22:49:21,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969531501] [2020-10-05 22:49:21,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:21,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:21,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974070881] [2020-10-05 22:49:21,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:21,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:21,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:21,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:21,989 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:49:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,045 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-05 22:49:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:22,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:49:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,064 INFO L225 Difference]: With dead ends: 290 [2020-10-05 22:49:22,064 INFO L226 Difference]: Without dead ends: 226 [2020-10-05 22:49:22,065 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 22:49:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-05 22:49:22,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-05 22:49:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 22:49:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-05 22:49:22,133 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-05 22:49:22,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,134 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-05 22:49:22,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:22,134 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-05 22:49:22,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:49:22,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:49:22,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,137 INFO L82 PathProgramCache]: Analyzing trace with hash 572259518, now seen corresponding path program 1 times [2020-10-05 22:49:22,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013816318] [2020-10-05 22:49:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,250 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 22:49:22,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013816318] [2020-10-05 22:49:22,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:22,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375626807] [2020-10-05 22:49:22,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:22,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:22,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:22,254 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-05 22:49:22,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,266 INFO L93 Difference]: Finished difference Result 220 states and 604 transitions. [2020-10-05 22:49:22,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:22,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:49:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,269 INFO L225 Difference]: With dead ends: 220 [2020-10-05 22:49:22,270 INFO L226 Difference]: Without dead ends: 220 [2020-10-05 22:49:22,270 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 22:49:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-05 22:49:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-05 22:49:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-05 22:49:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 604 transitions. [2020-10-05 22:49:22,291 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 604 transitions. Word has length 9 [2020-10-05 22:49:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,292 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 604 transitions. [2020-10-05 22:49:22,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:22,292 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 604 transitions. [2020-10-05 22:49:22,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:22,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:49:22,294 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1053246614, now seen corresponding path program 1 times [2020-10-05 22:49:22,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78455936] [2020-10-05 22:49:22,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,340 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 22:49:22,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78455936] [2020-10-05 22:49:22,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:22,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322919882] [2020-10-05 22:49:22,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:22,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:22,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:22,343 INFO L87 Difference]: Start difference. First operand 220 states and 604 transitions. Second operand 3 states. [2020-10-05 22:49:22,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,356 INFO L93 Difference]: Finished difference Result 296 states and 766 transitions. [2020-10-05 22:49:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:22,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:49:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,359 INFO L225 Difference]: With dead ends: 296 [2020-10-05 22:49:22,359 INFO L226 Difference]: Without dead ends: 236 [2020-10-05 22:49:22,360 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 22:49:22,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-05 22:49:22,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212. [2020-10-05 22:49:22,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-05 22:49:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 548 transitions. [2020-10-05 22:49:22,385 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 548 transitions. Word has length 10 [2020-10-05 22:49:22,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,386 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 548 transitions. [2020-10-05 22:49:22,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 548 transitions. [2020-10-05 22:49:22,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:22,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:49:22,391 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1826039448, now seen corresponding path program 1 times [2020-10-05 22:49:22,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232007990] [2020-10-05 22:49:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,488 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 22:49:22,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232007990] [2020-10-05 22:49:22,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:22,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229793697] [2020-10-05 22:49:22,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:22,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:22,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:22,494 INFO L87 Difference]: Start difference. First operand 212 states and 548 transitions. Second operand 3 states. [2020-10-05 22:49:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,515 INFO L93 Difference]: Finished difference Result 203 states and 518 transitions. [2020-10-05 22:49:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:22,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:49:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,518 INFO L225 Difference]: With dead ends: 203 [2020-10-05 22:49:22,519 INFO L226 Difference]: Without dead ends: 203 [2020-10-05 22:49:22,519 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 22:49:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-05 22:49:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-05 22:49:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-05 22:49:22,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 518 transitions. [2020-10-05 22:49:22,542 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 518 transitions. Word has length 10 [2020-10-05 22:49:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,542 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 518 transitions. [2020-10-05 22:49:22,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 518 transitions. [2020-10-05 22:49:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:49:22,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:49:22,548 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,549 INFO L82 PathProgramCache]: Analyzing trace with hash -772648785, now seen corresponding path program 1 times [2020-10-05 22:49:22,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112039571] [2020-10-05 22:49:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,598 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 22:49:22,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112039571] [2020-10-05 22:49:22,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:22,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164270166] [2020-10-05 22:49:22,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:22,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:22,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:22,613 INFO L87 Difference]: Start difference. First operand 203 states and 518 transitions. Second operand 4 states. [2020-10-05 22:49:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,647 INFO L93 Difference]: Finished difference Result 240 states and 585 transitions. [2020-10-05 22:49:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:22,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:49:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,649 INFO L225 Difference]: With dead ends: 240 [2020-10-05 22:49:22,649 INFO L226 Difference]: Without dead ends: 144 [2020-10-05 22:49:22,649 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 22:49:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-05 22:49:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-05 22:49:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-05 22:49:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 331 transitions. [2020-10-05 22:49:22,654 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 331 transitions. Word has length 11 [2020-10-05 22:49:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,655 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 331 transitions. [2020-10-05 22:49:22,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 331 transitions. [2020-10-05 22:49:22,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:49:22,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:49:22,656 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,657 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-10-05 22:49:22,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612250499] [2020-10-05 22:49:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,742 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 22:49:22,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612250499] [2020-10-05 22:49:22,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:22,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523672250] [2020-10-05 22:49:22,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:22,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:22,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:22,748 INFO L87 Difference]: Start difference. First operand 144 states and 331 transitions. Second operand 4 states. [2020-10-05 22:49:22,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,798 INFO L93 Difference]: Finished difference Result 164 states and 345 transitions. [2020-10-05 22:49:22,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:22,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:49:22,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,800 INFO L225 Difference]: With dead ends: 164 [2020-10-05 22:49:22,802 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 22:49:22,802 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 22:49:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 22:49:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-05 22:49:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-05 22:49:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 261 transitions. [2020-10-05 22:49:22,808 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 261 transitions. Word has length 12 [2020-10-05 22:49:22,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,808 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 261 transitions. [2020-10-05 22:49:22,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 261 transitions. [2020-10-05 22:49:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:49:22,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:49:22,814 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,814 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-10-05 22:49:22,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091583863] [2020-10-05 22:49:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,905 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 22:49:22,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091583863] [2020-10-05 22:49:22,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:22,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723824850] [2020-10-05 22:49:22,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:22,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:22,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:22,908 INFO L87 Difference]: Start difference. First operand 124 states and 261 transitions. Second operand 5 states. [2020-10-05 22:49:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,949 INFO L93 Difference]: Finished difference Result 122 states and 237 transitions. [2020-10-05 22:49:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:22,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:49:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,951 INFO L225 Difference]: With dead ends: 122 [2020-10-05 22:49:22,951 INFO L226 Difference]: Without dead ends: 97 [2020-10-05 22:49:22,952 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 22:49:22,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-05 22:49:22,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-05 22:49:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-05 22:49:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-10-05 22:49:22,955 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 13 [2020-10-05 22:49:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,955 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-10-05 22:49:22,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-10-05 22:49:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:22,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:22,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:22,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:49:22,957 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-10-05 22:49:22,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:22,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232624464] [2020-10-05 22:49:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:22,984 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 22:49:22,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232624464] [2020-10-05 22:49:22,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:22,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:22,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950273966] [2020-10-05 22:49:22,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:22,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:22,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:22,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:22,987 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 3 states. [2020-10-05 22:49:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:22,994 INFO L93 Difference]: Finished difference Result 101 states and 184 transitions. [2020-10-05 22:49:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:22,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:49:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:22,995 INFO L225 Difference]: With dead ends: 101 [2020-10-05 22:49:22,996 INFO L226 Difference]: Without dead ends: 73 [2020-10-05 22:49:22,996 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 22:49:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-05 22:49:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2020-10-05 22:49:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-05 22:49:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-10-05 22:49:22,999 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 14 [2020-10-05 22:49:22,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:22,999 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-10-05 22:49:22,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:22,999 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-10-05 22:49:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:23,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:23,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:23,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:49:23,001 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:23,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-10-05 22:49:23,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:23,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336197768] [2020-10-05 22:49:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:23,052 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 22:49:23,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336197768] [2020-10-05 22:49:23,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:23,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:23,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579335756] [2020-10-05 22:49:23,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:49:23,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:23,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:49:23,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:23,055 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 6 states. [2020-10-05 22:49:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:23,083 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2020-10-05 22:49:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:23,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 22:49:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:23,084 INFO L225 Difference]: With dead ends: 67 [2020-10-05 22:49:23,084 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:49:23,085 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 22:49:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:49:23,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:49:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:49:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:49:23,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-05 22:49:23,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:23,086 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:49:23,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:49:23,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:49:23,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:49:23,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:49:23,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:49:23 BasicIcfg [2020-10-05 22:49:23,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:49:23,093 INFO L168 Benchmark]: Toolchain (without parser) took 4573.95 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.3 MB in the beginning and 159.2 MB in the end (delta: -58.0 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,094 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.99 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 160.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,096 INFO L168 Benchmark]: Boogie Preprocessor took 25.05 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,097 INFO L168 Benchmark]: RCFGBuilder took 451.10 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 133.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,098 INFO L168 Benchmark]: TraceAbstraction took 3323.67 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 133.9 MB in the beginning and 159.2 MB in the end (delta: -25.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:23,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.99 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 160.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.05 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.10 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 133.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3323.67 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 133.9 MB in the beginning and 159.2 MB in the end (delta: -25.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 167 SDtfs, 120 SDslu, 173 SDs, 0 SdLazy, 83 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...