/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/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:51:08,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:51:08,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:51:08,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:51:08,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:51:08,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:51:08,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:51:08,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:51:08,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:51:08,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:51:08,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:51:08,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:51:08,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:51:08,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:51:08,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:51:08,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:51:08,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:51:08,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:51:08,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:51:08,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:51:08,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:51:08,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:51:08,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:51:08,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:51:08,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:51:08,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:51:08,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:51:08,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:51:08,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:51:08,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:51:08,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:51:08,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:51:08,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:51:08,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:51:08,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:51:08,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:51:08,164 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 12:51:08,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:51:08,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:51:08,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:51:08,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:51:08,194 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:51:08,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:51:08,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:51:08,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:51:08,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:51:08,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:51:08,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:51:08,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:51:08,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:51:08,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:51:08,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:51:08,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:51:08,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:51:08,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:51:08,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:51:08,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:51:08,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:51:08,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:51:08,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:51:08,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:51:08,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:51:08,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:51:08,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:51:08,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:51:08,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:51:08,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:51:08,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:51:08,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:51:08,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:51:08,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:51:08,614 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:51:08,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-11-09 12:51:08,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfcc70f42/4392f5568cfe45f9ad44a66cdf66591a/FLAG59f325199 [2020-11-09 12:51:09,407 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:51:09,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-11-09 12:51:09,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfcc70f42/4392f5568cfe45f9ad44a66cdf66591a/FLAG59f325199 [2020-11-09 12:51:09,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfcc70f42/4392f5568cfe45f9ad44a66cdf66591a [2020-11-09 12:51:09,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:51:09,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:51:09,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:09,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:51:09,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:51:09,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:09" (1/1) ... [2020-11-09 12:51:09,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7b6142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:09, skipping insertion in model container [2020-11-09 12:51:09,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:09" (1/1) ... [2020-11-09 12:51:09,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:51:09,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:51:10,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:10,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:51:10,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:10,351 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:51:10,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10 WrapperNode [2020-11-09 12:51:10,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:10,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:10,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:51:10,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:51:10,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:10,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:51:10,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:51:10,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:51:10,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (1/1) ... [2020-11-09 12:51:10,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:51:10,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:51:10,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:51:10,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:51:10,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (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 12:51:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:51:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:51:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:51:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:51:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:51:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:51:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:51:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:51:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:51:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:51:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:51:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:51:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:51:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:51:10,565 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 12:51:11,140 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:51:11,140 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:51:11,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:11 BoogieIcfgContainer [2020-11-09 12:51:11,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:51:11,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:51:11,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:51:11,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:51:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:51:09" (1/3) ... [2020-11-09 12:51:11,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab4eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:11, skipping insertion in model container [2020-11-09 12:51:11,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:10" (2/3) ... [2020-11-09 12:51:11,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab4eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:11, skipping insertion in model container [2020-11-09 12:51:11,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:11" (3/3) ... [2020-11-09 12:51:11,152 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-11-09 12:51:11,169 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:51:11,170 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:51:11,175 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:51:11,176 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:51:11,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,224 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,224 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,227 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,232 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,233 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,233 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,233 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,245 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:11,254 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:51:11,267 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:51:11,293 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:51:11,294 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:51:11,294 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:51:11,294 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:51:11,294 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:51:11,294 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:51:11,294 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:51:11,295 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:51:11,309 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:51:11,312 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:51:11,315 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:51:11,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-11-09 12:51:11,365 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-11-09 12:51:11,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:51:11,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 12:51:11,373 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 12:51:16,312 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:51:16,620 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:51:17,110 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:51:17,279 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:51:17,674 WARN L194 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:51:17,854 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:51:17,927 INFO L131 LiptonReduction]: Checked pairs total: 2469 [2020-11-09 12:51:17,927 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 12:51:17,935 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 12:51:17,959 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-09 12:51:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-09 12:51:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:51:17,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:17,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:17,970 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:17,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1935178246, now seen corresponding path program 1 times [2020-11-09 12:51:17,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:17,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337259903] [2020-11-09 12:51:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:18,174 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 12:51:18,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337259903] [2020-11-09 12:51:18,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:18,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:18,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307021777] [2020-11-09 12:51:18,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:51:18,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:18,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:51:18,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:51:18,221 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-09 12:51:18,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:18,252 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-09 12:51:18,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:51:18,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:51:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:18,272 INFO L225 Difference]: With dead ends: 274 [2020-11-09 12:51:18,273 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 12:51:18,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:51:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 12:51:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 12:51:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 12:51:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-09 12:51:18,349 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-09 12:51:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:18,350 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-09 12:51:18,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:51:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-09 12:51:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:51:18,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:18,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:18,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:51:18,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:18,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:18,354 INFO L82 PathProgramCache]: Analyzing trace with hash -139024564, now seen corresponding path program 1 times [2020-11-09 12:51:18,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:18,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501764859] [2020-11-09 12:51:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:18,512 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 12:51:18,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501764859] [2020-11-09 12:51:18,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:18,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:18,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836511880] [2020-11-09 12:51:18,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:18,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:18,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:18,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:18,517 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 3 states. [2020-11-09 12:51:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:18,541 INFO L93 Difference]: Finished difference Result 172 states and 418 transitions. [2020-11-09 12:51:18,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:18,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 12:51:18,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:18,545 INFO L225 Difference]: With dead ends: 172 [2020-11-09 12:51:18,545 INFO L226 Difference]: Without dead ends: 172 [2020-11-09 12:51:18,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:18,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-09 12:51:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-09 12:51:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-09 12:51:18,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 418 transitions. [2020-11-09 12:51:18,568 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 418 transitions. Word has length 9 [2020-11-09 12:51:18,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:18,569 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 418 transitions. [2020-11-09 12:51:18,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:18,569 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 418 transitions. [2020-11-09 12:51:18,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:51:18,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:18,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:18,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:51:18,571 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:18,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1635413154, now seen corresponding path program 1 times [2020-11-09 12:51:18,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:18,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762029965] [2020-11-09 12:51:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:18,660 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 12:51:18,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762029965] [2020-11-09 12:51:18,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:18,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:18,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357167079] [2020-11-09 12:51:18,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:18,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:18,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:18,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:18,665 INFO L87 Difference]: Start difference. First operand 172 states and 418 transitions. Second operand 4 states. [2020-11-09 12:51:18,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:18,722 INFO L93 Difference]: Finished difference Result 109 states and 229 transitions. [2020-11-09 12:51:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:18,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:51:18,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:18,727 INFO L225 Difference]: With dead ends: 109 [2020-11-09 12:51:18,727 INFO L226 Difference]: Without dead ends: 109 [2020-11-09 12:51:18,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-09 12:51:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-09 12:51:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-09 12:51:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 229 transitions. [2020-11-09 12:51:18,744 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 229 transitions. Word has length 11 [2020-11-09 12:51:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:18,744 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 229 transitions. [2020-11-09 12:51:18,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 229 transitions. [2020-11-09 12:51:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:51:18,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:18,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:18,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:51:18,752 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:18,755 INFO L82 PathProgramCache]: Analyzing trace with hash 395532943, now seen corresponding path program 1 times [2020-11-09 12:51:18,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:18,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192444006] [2020-11-09 12:51:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:18,882 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 12:51:18,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192444006] [2020-11-09 12:51:18,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:18,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:51:18,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342307152] [2020-11-09 12:51:18,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:18,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:18,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:18,885 INFO L87 Difference]: Start difference. First operand 109 states and 229 transitions. Second operand 5 states. [2020-11-09 12:51:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:18,938 INFO L93 Difference]: Finished difference Result 85 states and 181 transitions. [2020-11-09 12:51:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:18,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 12:51:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:18,940 INFO L225 Difference]: With dead ends: 85 [2020-11-09 12:51:18,940 INFO L226 Difference]: Without dead ends: 85 [2020-11-09 12:51:18,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-09 12:51:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-09 12:51:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-09 12:51:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 181 transitions. [2020-11-09 12:51:18,947 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 181 transitions. Word has length 14 [2020-11-09 12:51:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:18,948 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 181 transitions. [2020-11-09 12:51:18,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 181 transitions. [2020-11-09 12:51:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:51:18,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:18,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:18,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:51:18,950 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:18,950 INFO L82 PathProgramCache]: Analyzing trace with hash 781717809, now seen corresponding path program 1 times [2020-11-09 12:51:18,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:18,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216053077] [2020-11-09 12:51:18,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:19,066 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 12:51:19,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216053077] [2020-11-09 12:51:19,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:19,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:19,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434629765] [2020-11-09 12:51:19,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:19,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:19,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:19,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:19,070 INFO L87 Difference]: Start difference. First operand 85 states and 181 transitions. Second operand 4 states. [2020-11-09 12:51:19,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:19,119 INFO L93 Difference]: Finished difference Result 111 states and 227 transitions. [2020-11-09 12:51:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:19,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:51:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:19,121 INFO L225 Difference]: With dead ends: 111 [2020-11-09 12:51:19,121 INFO L226 Difference]: Without dead ends: 61 [2020-11-09 12:51:19,122 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 12:51:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-09 12:51:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-09 12:51:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-09 12:51:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 113 transitions. [2020-11-09 12:51:19,130 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 113 transitions. Word has length 17 [2020-11-09 12:51:19,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:19,131 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 113 transitions. [2020-11-09 12:51:19,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2020-11-09 12:51:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:51:19,132 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:19,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:19,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:51:19,132 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:19,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:19,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1128654861, now seen corresponding path program 2 times [2020-11-09 12:51:19,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:19,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884140290] [2020-11-09 12:51:19,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:19,213 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 12:51:19,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884140290] [2020-11-09 12:51:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:19,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535768397] [2020-11-09 12:51:19,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:19,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:19,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:19,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:19,216 INFO L87 Difference]: Start difference. First operand 61 states and 113 transitions. Second operand 5 states. [2020-11-09 12:51:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:19,285 INFO L93 Difference]: Finished difference Result 81 states and 148 transitions. [2020-11-09 12:51:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:19,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 12:51:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:19,287 INFO L225 Difference]: With dead ends: 81 [2020-11-09 12:51:19,287 INFO L226 Difference]: Without dead ends: 55 [2020-11-09 12:51:19,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:51:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-09 12:51:19,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-09 12:51:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-09 12:51:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 101 transitions. [2020-11-09 12:51:19,291 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 101 transitions. Word has length 17 [2020-11-09 12:51:19,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:19,292 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 101 transitions. [2020-11-09 12:51:19,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 101 transitions. [2020-11-09 12:51:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:51:19,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:19,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:19,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:51:19,294 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:19,295 INFO L82 PathProgramCache]: Analyzing trace with hash -842301437, now seen corresponding path program 3 times [2020-11-09 12:51:19,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:19,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155466855] [2020-11-09 12:51:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:19,367 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 12:51:19,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155466855] [2020-11-09 12:51:19,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:19,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:51:19,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736413580] [2020-11-09 12:51:19,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:19,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:19,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:19,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:19,369 INFO L87 Difference]: Start difference. First operand 55 states and 101 transitions. Second operand 5 states. [2020-11-09 12:51:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:19,429 INFO L93 Difference]: Finished difference Result 54 states and 100 transitions. [2020-11-09 12:51:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:19,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 12:51:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:19,429 INFO L225 Difference]: With dead ends: 54 [2020-11-09 12:51:19,429 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:51:19,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:51:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:51:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:51:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:51:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:51:19,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:51:19,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:19,431 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:51:19,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:19,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:51:19,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:51:19,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:51:19,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:51:19 BasicIcfg [2020-11-09 12:51:19,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:51:19,438 INFO L168 Benchmark]: Toolchain (without parser) took 9726.97 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 124.6 MB in the beginning and 85.0 MB in the end (delta: 39.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,438 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:51:19,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.12 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 93.3 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 91.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,442 INFO L168 Benchmark]: Boogie Preprocessor took 44.77 ms. Allocated memory is still 151.0 MB. Free memory was 91.1 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,446 INFO L168 Benchmark]: RCFGBuilder took 682.17 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 117.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,447 INFO L168 Benchmark]: TraceAbstraction took 8291.25 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 117.0 MB in the beginning and 85.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:19,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.12 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 93.3 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 91.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.77 ms. Allocated memory is still 151.0 MB. Free memory was 91.1 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 682.17 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 117.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8291.25 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 117.0 MB in the beginning and 85.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 948 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.6s, 84 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2469 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 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 120 SDtfs, 82 SDslu, 160 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...