/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:51:14,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:51:14,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:51:14,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:51:14,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:51:14,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:51:14,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:51:14,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:51:14,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:51:14,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:51:14,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:51:14,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:51:14,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:51:14,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:51:14,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:51:14,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:51:14,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:51:14,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:51:14,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:51:14,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:51:14,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:51:14,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:51:14,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:51:14,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:51:14,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:51:14,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:51:14,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:51:14,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:51:14,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:51:14,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:51:14,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:51:14,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:51:14,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:51:14,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:51:14,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:51:14,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:51:14,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:51:14,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:51:14,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:51:14,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:51:14,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:51:14,147 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 [2020-11-09 12:51:14,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:51:14,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:51:14,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:51:14,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:51:14,204 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:51:14,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:51:14,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:51:14,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:51:14,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:51:14,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:51:14,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:51:14,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:51:14,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:51:14,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:51:14,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:51:14,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:51:14,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:51:14,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:51:14,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:51:14,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:51:14,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:51:14,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:51:14,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:51:14,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:51:14,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:51:14,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:51:14,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:51:14,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:51:14,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:51:14,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:51:14,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:51:14,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:51:14,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:51:14,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:51:14,666 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:51:14,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-11-09 12:51:14,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09050d3f/1a88302b9d004c85ba3108fe55472c0e/FLAG27bc3567e [2020-11-09 12:51:15,460 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:51:15,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-11-09 12:51:15,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09050d3f/1a88302b9d004c85ba3108fe55472c0e/FLAG27bc3567e [2020-11-09 12:51:15,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09050d3f/1a88302b9d004c85ba3108fe55472c0e [2020-11-09 12:51:15,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:51:15,675 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:51:15,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:15,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:51:15,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:51:15,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:15" (1/1) ... [2020-11-09 12:51:15,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775e005b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:15, skipping insertion in model container [2020-11-09 12:51:15,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:15" (1/1) ... [2020-11-09 12:51:15,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:51:15,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:51:16,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:16,145 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:51:16,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:16,349 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:51:16,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16 WrapperNode [2020-11-09 12:51:16,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:16,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:16,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:51:16,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:51:16,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:16,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:51:16,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:51:16,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:51:16,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (1/1) ... [2020-11-09 12:51:16,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:51:16,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:51:16,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:51:16,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:51:16,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (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 [2020-11-09 12:51:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:51:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:51:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:51:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:51:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:51:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:51:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:51:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:51:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:51:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:51:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 12:51:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 12:51:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:51:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:51:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:51:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:51:16,506 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:51:17,081 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:51:17,081 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:51:17,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:17 BoogieIcfgContainer [2020-11-09 12:51:17,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:51:17,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:51:17,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:51:17,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:51:17,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:51:15" (1/3) ... [2020-11-09 12:51:17,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d2ad19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:17, skipping insertion in model container [2020-11-09 12:51:17,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:16" (2/3) ... [2020-11-09 12:51:17,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d2ad19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:17, skipping insertion in model container [2020-11-09 12:51:17,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:17" (3/3) ... [2020-11-09 12:51:17,096 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-11-09 12:51:17,114 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:51:17,115 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:51:17,119 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:51:17,120 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:51:17,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,196 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,198 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,198 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,199 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,199 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,207 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,208 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,208 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,209 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,219 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,220 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,220 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,220 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,226 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:17,232 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:51:17,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 12:51:17,281 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:51:17,281 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:51:17,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:51:17,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:51:17,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:51:17,282 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:51:17,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:51:17,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:51:17,299 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:51:17,303 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:17,306 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:17,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:17,372 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 12:51:17,373 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:51:17,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 12:51:17,382 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 12:51:17,883 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-09 12:51:20,101 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:51:20,909 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-09 12:51:21,607 WARN L194 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:51:21,743 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:51:21,999 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:51:22,104 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:51:22,552 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-09 12:51:22,553 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 12:51:22,560 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 12:51:22,614 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 12:51:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 12:51:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:51:22,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:22,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:22,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:22,633 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-09 12:51:22,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:22,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343447521] [2020-11-09 12:51:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:22,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343447521] [2020-11-09 12:51:22,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:22,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:51:22,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3867763] [2020-11-09 12:51:22,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:22,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:22,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:22,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:22,961 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 12:51:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,027 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 12:51:23,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:23,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 12:51:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,057 INFO L225 Difference]: With dead ends: 670 [2020-11-09 12:51:23,057 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 12:51:23,059 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 [2020-11-09 12:51:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 12:51:23,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 12:51:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 12:51:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 12:51:23,176 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 12:51:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,177 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 12:51:23,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 12:51:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:51:23,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:51:23,183 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,184 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-11-09 12:51:23,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122882013] [2020-11-09 12:51:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:23,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122882013] [2020-11-09 12:51:23,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:23,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:23,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224894568] [2020-11-09 12:51:23,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:23,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:23,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:23,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:23,284 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 12:51:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,321 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-11-09 12:51:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:23,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:51:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,326 INFO L225 Difference]: With dead ends: 634 [2020-11-09 12:51:23,327 INFO L226 Difference]: Without dead ends: 322 [2020-11-09 12:51:23,327 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 [2020-11-09 12:51:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-09 12:51:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-11-09 12:51:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-09 12:51:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-11-09 12:51:23,353 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-11-09 12:51:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,353 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-11-09 12:51:23,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-11-09 12:51:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:51:23,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:51:23,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-11-09 12:51:23,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460380974] [2020-11-09 12:51:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:23,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460380974] [2020-11-09 12:51:23,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:23,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:51:23,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474067150] [2020-11-09 12:51:23,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:23,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:23,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:23,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:23,439 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-11-09 12:51:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,456 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-11-09 12:51:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:23,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 12:51:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,460 INFO L225 Difference]: With dead ends: 304 [2020-11-09 12:51:23,461 INFO L226 Difference]: Without dead ends: 304 [2020-11-09 12:51:23,461 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 [2020-11-09 12:51:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-09 12:51:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-09 12:51:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-09 12:51:23,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-11-09 12:51:23,477 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-11-09 12:51:23,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,478 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-11-09 12:51:23,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:23,478 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-11-09 12:51:23,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:51:23,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:51:23,488 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-11-09 12:51:23,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867823318] [2020-11-09 12:51:23,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:23,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867823318] [2020-11-09 12:51:23,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:23,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:23,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860819719] [2020-11-09 12:51:23,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:23,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:23,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:23,584 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-11-09 12:51:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,631 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-11-09 12:51:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:23,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 12:51:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,639 INFO L225 Difference]: With dead ends: 406 [2020-11-09 12:51:23,639 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 12:51:23,640 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 [2020-11-09 12:51:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 12:51:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 12:51:23,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 12:51:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-09 12:51:23,649 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-09 12:51:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,650 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-09 12:51:23,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-09 12:51:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:51:23,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:51:23,652 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-09 12:51:23,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123146904] [2020-11-09 12:51:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:23,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123146904] [2020-11-09 12:51:23,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:23,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:23,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295366481] [2020-11-09 12:51:23,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:23,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:23,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:23,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:23,753 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 4 states. [2020-11-09 12:51:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,811 INFO L93 Difference]: Finished difference Result 287 states and 773 transitions. [2020-11-09 12:51:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:23,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 12:51:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,814 INFO L225 Difference]: With dead ends: 287 [2020-11-09 12:51:23,814 INFO L226 Difference]: Without dead ends: 206 [2020-11-09 12:51:23,814 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 [2020-11-09 12:51:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-09 12:51:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-11-09 12:51:23,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-09 12:51:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 559 transitions. [2020-11-09 12:51:23,823 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 559 transitions. Word has length 14 [2020-11-09 12:51:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,823 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 559 transitions. [2020-11-09 12:51:23,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:23,824 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 559 transitions. [2020-11-09 12:51:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:51:23,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:51:23,825 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1148644205, now seen corresponding path program 1 times [2020-11-09 12:51:23,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771793806] [2020-11-09 12:51:23,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:23,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771793806] [2020-11-09 12:51:23,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:23,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:23,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497982248] [2020-11-09 12:51:23,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:23,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:23,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:23,906 INFO L87 Difference]: Start difference. First operand 206 states and 559 transitions. Second operand 5 states. [2020-11-09 12:51:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:23,971 INFO L93 Difference]: Finished difference Result 227 states and 565 transitions. [2020-11-09 12:51:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:51:23,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:51:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:23,974 INFO L225 Difference]: With dead ends: 227 [2020-11-09 12:51:23,974 INFO L226 Difference]: Without dead ends: 162 [2020-11-09 12:51:23,974 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 [2020-11-09 12:51:23,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-09 12:51:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-09 12:51:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 12:51:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-09 12:51:23,981 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 15 [2020-11-09 12:51:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:23,981 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-09 12:51:23,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-09 12:51:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:51:23,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:23,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:23,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:51:23,983 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:23,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-09 12:51:23,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:23,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954539860] [2020-11-09 12:51:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:24,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954539860] [2020-11-09 12:51:24,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:24,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:51:24,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697908388] [2020-11-09 12:51:24,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:51:24,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:24,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:51:24,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:51:24,066 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-09 12:51:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:24,126 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-09 12:51:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:51:24,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 12:51:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:24,128 INFO L225 Difference]: With dead ends: 158 [2020-11-09 12:51:24,128 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 12:51:24,128 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 [2020-11-09 12:51:24,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 12:51:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 12:51:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 12:51:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-09 12:51:24,133 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-09 12:51:24,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:24,133 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-09 12:51:24,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:51:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-09 12:51:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:51:24,134 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:24,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:24,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:51:24,135 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:24,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-09 12:51:24,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:24,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511911894] [2020-11-09 12:51:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:24,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511911894] [2020-11-09 12:51:24,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:24,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:51:24,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539614824] [2020-11-09 12:51:24,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 12:51:24,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:24,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 12:51:24,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:51:24,203 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-09 12:51:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:24,281 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-09 12:51:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:51:24,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 12:51:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:24,283 INFO L225 Difference]: With dead ends: 120 [2020-11-09 12:51:24,283 INFO L226 Difference]: Without dead ends: 111 [2020-11-09 12:51:24,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:51:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-09 12:51:24,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-09 12:51:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-09 12:51:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-09 12:51:24,287 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-09 12:51:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:24,288 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-09 12:51:24,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 12:51:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-09 12:51:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 12:51:24,289 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:24,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:24,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:51:24,289 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:24,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:24,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-09 12:51:24,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:24,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905596438] [2020-11-09 12:51:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:24,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905596438] [2020-11-09 12:51:24,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:24,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:24,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814109035] [2020-11-09 12:51:24,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:24,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:24,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:24,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:24,354 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-09 12:51:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:24,371 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-09 12:51:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:24,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 12:51:24,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:24,373 INFO L225 Difference]: With dead ends: 144 [2020-11-09 12:51:24,373 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 12:51:24,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 12:51:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 12:51:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 12:51:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 12:51:24,376 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 12:51:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:24,378 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 12:51:24,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 12:51:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 12:51:24,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:24,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:24,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:51:24,379 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:24,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:24,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-09 12:51:24,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:24,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447304326] [2020-11-09 12:51:24,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:51:24,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447304326] [2020-11-09 12:51:24,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:24,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:24,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37733023] [2020-11-09 12:51:24,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:24,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:24,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:24,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:24,424 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 12:51:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:24,436 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 12:51:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:24,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 12:51:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:24,437 INFO L225 Difference]: With dead ends: 70 [2020-11-09 12:51:24,437 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:51:24,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:51:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:51:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:51:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:51:24,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 12:51:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:24,438 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:51:24,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:51:24,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:51:24,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:51:24,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:51:24 BasicIcfg [2020-11-09 12:51:24,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:51:24,447 INFO L168 Benchmark]: Toolchain (without parser) took 8775.73 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 146.1 MB in the beginning and 99.8 MB in the end (delta: 46.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,447 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 125.8 MB. Free memory was 105.1 MB in the beginning and 105.0 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:51:24,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.04 ms. Allocated memory is still 170.9 MB. Free memory was 145.4 MB in the beginning and 143.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 170.9 MB. Free memory was 143.0 MB in the beginning and 140.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,453 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 ms. Allocated memory is still 170.9 MB. Free memory was 140.9 MB in the beginning and 139.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,456 INFO L168 Benchmark]: RCFGBuilder took 655.43 ms. Allocated memory is still 170.9 MB. Free memory was 139.4 MB in the beginning and 115.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,457 INFO L168 Benchmark]: TraceAbstraction took 7356.91 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 115.3 MB in the beginning and 99.8 MB in the end (delta: 15.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:24,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 125.8 MB. Free memory was 105.1 MB in the beginning and 105.0 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 672.04 ms. Allocated memory is still 170.9 MB. Free memory was 145.4 MB in the beginning and 143.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 170.9 MB. Free memory was 143.0 MB in the beginning and 140.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.91 ms. Allocated memory is still 170.9 MB. Free memory was 140.9 MB in the beginning and 139.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 655.43 ms. Allocated memory is still 170.9 MB. Free memory was 139.4 MB in the beginning and 115.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7356.91 ms. Allocated memory was 170.9 MB in the beginning and 205.5 MB in the end (delta: 34.6 MB). Free memory was 115.3 MB in the beginning and 99.8 MB in the end (delta: 15.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1383 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 112 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 209 SDtfs, 230 SDslu, 310 SDs, 0 SdLazy, 184 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 5533 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...