/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:26:47,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:26:47,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:26:47,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:26:47,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:26:47,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:26:47,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:26:47,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:26:47,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:26:47,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:26:47,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:26:47,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:26:47,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:26:47,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:26:47,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:26:47,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:26:47,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:26:47,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:26:47,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:26:47,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:26:47,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:26:47,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:26:47,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:26:47,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:26:47,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:26:47,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:26:47,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:26:47,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:26:47,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:26:47,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:26:47,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:26:47,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:26:47,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:26:47,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:26:47,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:26:47,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:26:47,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:26:47,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:26:47,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:26:47,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:26:47,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:26:47,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2020-11-12 06:26:47,230 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:26:47,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:26:47,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:26:47,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:26:47,233 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:26:47,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:26:47,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:26:47,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:26:47,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:26:47,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:26:47,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:26:47,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:26:47,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:26:47,235 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:26:47,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:26:47,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:26:47,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:26:47,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:26:47,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:26:47,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:26:47,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:26:47,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:26:47,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:26:47,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:26:47,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:26:47,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:26:47,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:26:47,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:26:47,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:26:47,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:26:47,240 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:26:47,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:26:47,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:26:47,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:26:47,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:26:47,611 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:26:47,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-11-12 06:26:47,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31eee854/19c1e0960f554e9bb17ff33ffb729228/FLAGbb16fe567 [2020-11-12 06:26:48,444 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:26:48,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-11-12 06:26:48,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31eee854/19c1e0960f554e9bb17ff33ffb729228/FLAGbb16fe567 [2020-11-12 06:26:48,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31eee854/19c1e0960f554e9bb17ff33ffb729228 [2020-11-12 06:26:48,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:26:48,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:26:48,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:48,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:26:48,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:26:48,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:48" (1/1) ... [2020-11-12 06:26:48,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bf8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:48, skipping insertion in model container [2020-11-12 06:26:48,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:48" (1/1) ... [2020-11-12 06:26:48,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:26:48,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:26:49,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:49,435 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:26:49,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:49,640 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:26:49,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49 WrapperNode [2020-11-12 06:26:49,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:49,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:49,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:26:49,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:26:49,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:49,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:26:49,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:26:49,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:26:49,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (1/1) ... [2020-11-12 06:26:49,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:26:49,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:26:49,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:26:49,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:26:49,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (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 [2020-11-12 06:26:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:26:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:26:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:26:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:26:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:26:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:26:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:26:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:26:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:26:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:26:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:26:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:26:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:26:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:26:49,922 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:26:50,421 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:26:50,421 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:26:50,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:50 BoogieIcfgContainer [2020-11-12 06:26:50,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:26:50,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:26:50,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:26:50,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:26:50,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:26:48" (1/3) ... [2020-11-12 06:26:50,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f914025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:50, skipping insertion in model container [2020-11-12 06:26:50,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:49" (2/3) ... [2020-11-12 06:26:50,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f914025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:50, skipping insertion in model container [2020-11-12 06:26:50,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:50" (3/3) ... [2020-11-12 06:26:50,433 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-11-12 06:26:50,450 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:26:50,450 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:26:50,454 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:26:50,456 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:26:50,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,513 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,517 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,518 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,518 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:50,521 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:26:50,535 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:26:50,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:26:50,564 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:26:50,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:26:50,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:26:50,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:26:50,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:26:50,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:26:50,565 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:26:50,579 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 06:26:51,777 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:52,343 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 562ms [2020-11-12 06:26:52,383 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:52,401 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:26:52,442 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:52,443 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:52,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-11-12 06:26:52,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:52,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252411477] [2020-11-12 06:26:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:52,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252411477] [2020-11-12 06:26:52,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:52,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:26:52,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919910252] [2020-11-12 06:26:52,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:26:52,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:52,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:26:52,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:26:53,012 INFO L87 Difference]: Start difference. First operand has 9849 states, 8911 states have (on average 1.4191448771181685) internal successors, (12646), 9848 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:53,430 INFO L93 Difference]: Finished difference Result 9342 states and 11659 transitions. [2020-11-12 06:26:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:53,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 06:26:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:53,472 INFO L225 Difference]: With dead ends: 9342 [2020-11-12 06:26:53,472 INFO L226 Difference]: Without dead ends: 3830 [2020-11-12 06:26:53,474 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-11-12 06:26:53,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3830. [2020-11-12 06:26:53,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3830 states, 3551 states have (on average 1.4686003942551393) internal successors, (5215), 3829 states have internal predecessors, (5215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 5215 transitions. [2020-11-12 06:26:53,758 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 5215 transitions. Word has length 43 [2020-11-12 06:26:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:53,758 INFO L481 AbstractCegarLoop]: Abstraction has 3830 states and 5215 transitions. [2020-11-12 06:26:53,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 5215 transitions. [2020-11-12 06:26:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:26:53,767 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:53,767 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:53,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:26:53,768 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:53,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-11-12 06:26:53,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:53,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871175765] [2020-11-12 06:26:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:53,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871175765] [2020-11-12 06:26:53,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:53,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:53,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278375948] [2020-11-12 06:26:53,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:53,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:53,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:53,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:53,960 INFO L87 Difference]: Start difference. First operand 3830 states and 5215 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:54,228 INFO L93 Difference]: Finished difference Result 2876 states and 4270 transitions. [2020-11-12 06:26:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:54,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:26:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:54,240 INFO L225 Difference]: With dead ends: 2876 [2020-11-12 06:26:54,240 INFO L226 Difference]: Without dead ends: 2022 [2020-11-12 06:26:54,241 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:26:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2020-11-12 06:26:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2022. [2020-11-12 06:26:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1887 states have (on average 1.4361420243773184) internal successors, (2710), 2021 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2710 transitions. [2020-11-12 06:26:54,332 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2710 transitions. Word has length 47 [2020-11-12 06:26:54,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:54,332 INFO L481 AbstractCegarLoop]: Abstraction has 2022 states and 2710 transitions. [2020-11-12 06:26:54,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2710 transitions. [2020-11-12 06:26:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:26:54,340 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:54,340 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:54,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:26:54,341 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:54,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:54,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1357778806, now seen corresponding path program 1 times [2020-11-12 06:26:54,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:54,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159268442] [2020-11-12 06:26:54,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:54,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159268442] [2020-11-12 06:26:54,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:54,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:26:54,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146611408] [2020-11-12 06:26:54,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:26:54,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:54,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:26:54,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:26:54,625 INFO L87 Difference]: Start difference. First operand 2022 states and 2710 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:54,855 INFO L93 Difference]: Finished difference Result 1104 states and 1615 transitions. [2020-11-12 06:26:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:26:54,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:26:54,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:54,860 INFO L225 Difference]: With dead ends: 1104 [2020-11-12 06:26:54,860 INFO L226 Difference]: Without dead ends: 652 [2020-11-12 06:26:54,861 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:26:54,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-11-12 06:26:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2020-11-12 06:26:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 625 states have (on average 1.3296) internal successors, (831), 651 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 831 transitions. [2020-11-12 06:26:54,878 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 831 transitions. Word has length 51 [2020-11-12 06:26:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:54,879 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 831 transitions. [2020-11-12 06:26:54,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:54,879 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 831 transitions. [2020-11-12 06:26:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:54,882 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:54,882 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:54,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:26:54,882 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:54,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:54,883 INFO L82 PathProgramCache]: Analyzing trace with hash -288612556, now seen corresponding path program 1 times [2020-11-12 06:26:54,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:54,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016053150] [2020-11-12 06:26:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:55,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016053150] [2020-11-12 06:26:55,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:55,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:55,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674527848] [2020-11-12 06:26:55,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:55,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:55,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:55,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:55,016 INFO L87 Difference]: Start difference. First operand 652 states and 831 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:55,132 INFO L93 Difference]: Finished difference Result 880 states and 1175 transitions. [2020-11-12 06:26:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:55,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:55,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:55,136 INFO L225 Difference]: With dead ends: 880 [2020-11-12 06:26:55,136 INFO L226 Difference]: Without dead ends: 412 [2020-11-12 06:26:55,136 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-12 06:26:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-12 06:26:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 385 states have (on average 1.3948051948051947) internal successors, (537), 411 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 537 transitions. [2020-11-12 06:26:55,148 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 537 transitions. Word has length 55 [2020-11-12 06:26:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:55,148 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 537 transitions. [2020-11-12 06:26:55,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 537 transitions. [2020-11-12 06:26:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:55,150 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:55,150 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:55,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:26:55,150 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:55,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:55,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1953173588, now seen corresponding path program 2 times [2020-11-12 06:26:55,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:55,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674949596] [2020-11-12 06:26:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:55,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674949596] [2020-11-12 06:26:55,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:55,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:55,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967482329] [2020-11-12 06:26:55,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:55,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:55,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:55,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:55,275 INFO L87 Difference]: Start difference. First operand 412 states and 537 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:55,381 INFO L93 Difference]: Finished difference Result 630 states and 868 transitions. [2020-11-12 06:26:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:55,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:55,385 INFO L225 Difference]: With dead ends: 630 [2020-11-12 06:26:55,385 INFO L226 Difference]: Without dead ends: 367 [2020-11-12 06:26:55,385 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-11-12 06:26:55,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2020-11-12 06:26:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 340 states have (on average 1.4205882352941177) internal successors, (483), 366 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 483 transitions. [2020-11-12 06:26:55,395 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 483 transitions. Word has length 55 [2020-11-12 06:26:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:55,396 INFO L481 AbstractCegarLoop]: Abstraction has 367 states and 483 transitions. [2020-11-12 06:26:55,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 483 transitions. [2020-11-12 06:26:55,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:26:55,397 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:55,398 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:55,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:26:55,398 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:55,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1468190164, now seen corresponding path program 3 times [2020-11-12 06:26:55,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:55,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278341623] [2020-11-12 06:26:55,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:55,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278341623] [2020-11-12 06:26:55,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:55,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:55,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891006500] [2020-11-12 06:26:55,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:55,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:55,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:55,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:55,563 INFO L87 Difference]: Start difference. First operand 367 states and 483 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:55,673 INFO L93 Difference]: Finished difference Result 259 states and 375 transitions. [2020-11-12 06:26:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:55,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:26:55,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:55,674 INFO L225 Difference]: With dead ends: 259 [2020-11-12 06:26:55,674 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:26:55,677 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:55,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:26:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:26:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:26:55,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-12 06:26:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:55,679 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:26:55,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:26:55,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:26:55,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:26:55,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:26:55 BasicIcfg [2020-11-12 06:26:55,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:26:55,689 INFO L168 Benchmark]: Toolchain (without parser) took 6968.70 ms. Allocated memory was 302.0 MB in the beginning and 666.9 MB in the end (delta: 364.9 MB). Free memory was 277.7 MB in the beginning and 592.5 MB in the end (delta: -314.8 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,690 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:26:55,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 910.44 ms. Allocated memory is still 302.0 MB. Free memory was 277.1 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.65 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,700 INFO L168 Benchmark]: Boogie Preprocessor took 60.89 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 283.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,701 INFO L168 Benchmark]: RCFGBuilder took 609.07 ms. Allocated memory is still 302.0 MB. Free memory was 283.4 MB in the beginning and 259.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,701 INFO L168 Benchmark]: TraceAbstraction took 5260.00 ms. Allocated memory was 302.0 MB in the beginning and 666.9 MB in the end (delta: 364.9 MB). Free memory was 259.3 MB in the beginning and 592.5 MB in the end (delta: -333.2 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:55,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 910.44 ms. Allocated memory is still 302.0 MB. Free memory was 277.1 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 109.65 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.89 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 283.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 609.07 ms. Allocated memory is still 302.0 MB. Free memory was 283.4 MB in the beginning and 259.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5260.00 ms. Allocated memory was 302.0 MB in the beginning and 666.9 MB in the end (delta: 364.9 MB). Free memory was 259.3 MB in the beginning and 592.5 MB in the end (delta: -333.2 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 468 SDtfs, 622 SDslu, 1772 SDs, 0 SdLazy, 227 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 37956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...