/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:28:11,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:28:11,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:28:11,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:28:11,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:28:11,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:28:11,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:28:11,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:28:11,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:28:11,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:28:11,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:28:11,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:28:11,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:28:11,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:28:11,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:28:11,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:28:11,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:28:11,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:28:11,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:28:11,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:28:11,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:28:11,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:28:11,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:28:11,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:28:11,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:28:11,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:28:11,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:28:11,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:28:11,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:28:11,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:28:11,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:28:11,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:28:11,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:28:11,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:28:11,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:28:11,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:28:11,676 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.epf [2021-01-26 17:28:11,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:28:11,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:28:11,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:28:11,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:28:11,736 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:28:11,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:28:11,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:28:11,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:28:11,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:28:11,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:28:11,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:28:11,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:28:11,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:28:11,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:28:11,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:28:11,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:28:11,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:28:11,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:28:11,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:28:11,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:28:11,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:28:11,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:28:11,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:28:11,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:28:11,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:28:11,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:28:11,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:28:11,743 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:28:11,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:28:11,744 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:28:11,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:28:12,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:28:12,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:28:12,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:28:12,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:28:12,212 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:28:12,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-01-26 17:28:12,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af272b654/47cc95283fc14a4a9519d3070c78a49a/FLAG542788176 [2021-01-26 17:28:13,068 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:28:13,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-01-26 17:28:13,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af272b654/47cc95283fc14a4a9519d3070c78a49a/FLAG542788176 [2021-01-26 17:28:13,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af272b654/47cc95283fc14a4a9519d3070c78a49a [2021-01-26 17:28:13,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:28:13,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:28:13,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:28:13,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:28:13,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:28:13,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:28:13" (1/1) ... [2021-01-26 17:28:13,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd19cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:13, skipping insertion in model container [2021-01-26 17:28:13,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:28:13" (1/1) ... [2021-01-26 17:28:13,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:28:13,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:28:13,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:28:13,888 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:28:13,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:28:14,047 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:28:14,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14 WrapperNode [2021-01-26 17:28:14,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:28:14,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:28:14,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:28:14,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:28:14,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:28:14,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:28:14,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:28:14,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:28:14,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (1/1) ... [2021-01-26 17:28:14,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:28:14,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:28:14,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:28:14,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:28:14,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (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 [2021-01-26 17:28:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:28:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:28:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:28:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:28:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:28:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:28:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:28:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:28:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:28:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:28:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-26 17:28:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-26 17:28:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:28:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:28:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:28:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:28:14,226 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:28:14,737 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:28:14,737 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:28:14,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:28:14 BoogieIcfgContainer [2021-01-26 17:28:14,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:28:14,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:28:14,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:28:14,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:28:14,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:28:13" (1/3) ... [2021-01-26 17:28:14,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad1045b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:28:14, skipping insertion in model container [2021-01-26 17:28:14,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:14" (2/3) ... [2021-01-26 17:28:14,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad1045b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:28:14, skipping insertion in model container [2021-01-26 17:28:14,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:28:14" (3/3) ... [2021-01-26 17:28:14,749 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2021-01-26 17:28:14,766 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:28:14,766 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:28:14,770 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:28:14,771 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:28:14,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,812 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,819 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,820 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,821 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,833 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,833 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:14,843 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:28:14,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-26 17:28:14,883 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:28:14,884 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:28:14,884 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:28:14,884 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:28:14,884 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:28:14,884 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:28:14,884 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:28:14,884 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:28:14,898 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2021-01-26 17:28:25,122 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2021-01-26 17:28:25,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2021-01-26 17:28:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:28:25,341 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:25,342 INFO L504 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] [2021-01-26 17:28:25,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2021-01-26 17:28:25,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:25,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431544428] [2021-01-26 17:28:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:26,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431544428] [2021-01-26 17:28:26,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:26,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:26,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223959240] [2021-01-26 17:28:26,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:26,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:26,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:26,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:26,267 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:28:28,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:28,270 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2021-01-26 17:28:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:28,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-26 17:28:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:28,649 INFO L225 Difference]: With dead ends: 73967 [2021-01-26 17:28:28,650 INFO L226 Difference]: Without dead ends: 25835 [2021-01-26 17:28:28,651 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:28,652 INFO L78 Accepts]: Start accepts. Automaton has 25835 states. Word has length 45 [2021-01-26 17:28:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:28,654 INFO L481 AbstractCegarLoop]: Abstraction has 25835 states. [2021-01-26 17:28:28,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:28:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 25835 states. [2021-01-26 17:28:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:28:28,719 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:28,719 INFO L504 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] [2021-01-26 17:28:28,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:28:28,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:28,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2021-01-26 17:28:28,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:28,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973929750] [2021-01-26 17:28:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:28,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973929750] [2021-01-26 17:28:28,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:28,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:28,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570595746] [2021-01-26 17:28:28,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:28,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:28,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:28,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:28,952 INFO L87 Difference]: Start difference. First operand 25835 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-26 17:28:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:29,727 INFO L93 Difference]: Finished difference Result 28427 states and 119043 transitions. [2021-01-26 17:28:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:29,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 [2021-01-26 17:28:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:29,865 INFO L225 Difference]: With dead ends: 28427 [2021-01-26 17:28:29,865 INFO L226 Difference]: Without dead ends: 22379 [2021-01-26 17:28:29,866 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:29,866 INFO L78 Accepts]: Start accepts. Automaton has 22379 states. Word has length 47 [2021-01-26 17:28:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:29,867 INFO L481 AbstractCegarLoop]: Abstraction has 22379 states. [2021-01-26 17:28:29,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-26 17:28:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 22379 states. [2021-01-26 17:28:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:28:29,936 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:29,937 INFO L504 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] [2021-01-26 17:28:29,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:28:29,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:29,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2021-01-26 17:28:29,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:29,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085881793] [2021-01-26 17:28:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:30,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085881793] [2021-01-26 17:28:30,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:30,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:30,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251213327] [2021-01-26 17:28:30,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:30,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:30,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:30,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:30,231 INFO L87 Difference]: Start difference. First operand 22379 states. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-01-26 17:28:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:30,656 INFO L93 Difference]: Finished difference Result 26123 states and 108715 transitions. [2021-01-26 17:28:30,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:30,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-01-26 17:28:30,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:30,745 INFO L225 Difference]: With dead ends: 26123 [2021-01-26 17:28:30,746 INFO L226 Difference]: Without dead ends: 21803 [2021-01-26 17:28:30,746 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:30,746 INFO L78 Accepts]: Start accepts. Automaton has 21803 states. Word has length 49 [2021-01-26 17:28:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:30,747 INFO L481 AbstractCegarLoop]: Abstraction has 21803 states. [2021-01-26 17:28:30,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-01-26 17:28:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states. [2021-01-26 17:28:30,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:28:30,812 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:30,812 INFO L504 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] [2021-01-26 17:28:30,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:28:30,813 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:30,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:30,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2021-01-26 17:28:30,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:30,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979329045] [2021-01-26 17:28:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:31,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979329045] [2021-01-26 17:28:31,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:31,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:31,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816097636] [2021-01-26 17:28:31,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:31,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:31,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:31,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:31,263 INFO L87 Difference]: Start difference. First operand 21803 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-26 17:28:31,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:31,683 INFO L93 Difference]: Finished difference Result 33875 states and 141229 transitions. [2021-01-26 17:28:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:28:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-01-26 17:28:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:31,987 INFO L225 Difference]: With dead ends: 33875 [2021-01-26 17:28:31,988 INFO L226 Difference]: Without dead ends: 20043 [2021-01-26 17:28:31,988 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:31,988 INFO L78 Accepts]: Start accepts. Automaton has 20043 states. Word has length 50 [2021-01-26 17:28:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:31,989 INFO L481 AbstractCegarLoop]: Abstraction has 20043 states. [2021-01-26 17:28:31,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-26 17:28:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 20043 states. [2021-01-26 17:28:32,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:28:32,059 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:32,059 INFO L504 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] [2021-01-26 17:28:32,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:28:32,060 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1369609187, now seen corresponding path program 2 times [2021-01-26 17:28:32,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:32,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690255737] [2021-01-26 17:28:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:32,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690255737] [2021-01-26 17:28:32,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:32,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:32,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448405466] [2021-01-26 17:28:32,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:32,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:32,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:32,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:32,276 INFO L87 Difference]: Start difference. First operand 20043 states. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-26 17:28:32,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:32,557 INFO L93 Difference]: Finished difference Result 21387 states and 88445 transitions. [2021-01-26 17:28:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:32,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-01-26 17:28:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:32,608 INFO L225 Difference]: With dead ends: 21387 [2021-01-26 17:28:32,608 INFO L226 Difference]: Without dead ends: 18251 [2021-01-26 17:28:32,608 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:32,608 INFO L78 Accepts]: Start accepts. Automaton has 18251 states. Word has length 50 [2021-01-26 17:28:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:32,609 INFO L481 AbstractCegarLoop]: Abstraction has 18251 states. [2021-01-26 17:28:32,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-26 17:28:32,609 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states. [2021-01-26 17:28:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:28:32,896 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:32,902 INFO L504 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] [2021-01-26 17:28:32,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:28:32,903 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1165374980, now seen corresponding path program 1 times [2021-01-26 17:28:32,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:32,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234564781] [2021-01-26 17:28:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:33,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234564781] [2021-01-26 17:28:33,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:33,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:33,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273828815] [2021-01-26 17:28:33,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:33,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:33,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:33,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:33,050 INFO L87 Difference]: Start difference. First operand 18251 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-01-26 17:28:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:33,450 INFO L93 Difference]: Finished difference Result 28811 states and 117373 transitions. [2021-01-26 17:28:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-01-26 17:28:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:33,515 INFO L225 Difference]: With dead ends: 28811 [2021-01-26 17:28:33,516 INFO L226 Difference]: Without dead ends: 20043 [2021-01-26 17:28:33,516 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:33,516 INFO L78 Accepts]: Start accepts. Automaton has 20043 states. Word has length 51 [2021-01-26 17:28:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:33,517 INFO L481 AbstractCegarLoop]: Abstraction has 20043 states. [2021-01-26 17:28:33,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-01-26 17:28:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 20043 states. [2021-01-26 17:28:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:28:33,561 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:33,561 INFO L504 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] [2021-01-26 17:28:33,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:28:33,561 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:33,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1153343617, now seen corresponding path program 1 times [2021-01-26 17:28:33,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:33,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146648801] [2021-01-26 17:28:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:33,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146648801] [2021-01-26 17:28:33,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:33,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:33,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309615014] [2021-01-26 17:28:33,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:33,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:33,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:33,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:33,686 INFO L87 Difference]: Start difference. First operand 20043 states. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:34,517 INFO L93 Difference]: Finished difference Result 41835 states and 165821 transitions. [2021-01-26 17:28:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-26 17:28:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-01-26 17:28:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:34,588 INFO L225 Difference]: With dead ends: 41835 [2021-01-26 17:28:34,588 INFO L226 Difference]: Without dead ends: 20187 [2021-01-26 17:28:34,588 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-01-26 17:28:34,588 INFO L78 Accepts]: Start accepts. Automaton has 20187 states. Word has length 52 [2021-01-26 17:28:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:34,589 INFO L481 AbstractCegarLoop]: Abstraction has 20187 states. [2021-01-26 17:28:34,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 20187 states. [2021-01-26 17:28:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:28:34,614 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:34,614 INFO L504 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] [2021-01-26 17:28:34,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:28:34,615 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2021-01-26 17:28:34,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:34,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218872368] [2021-01-26 17:28:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:34,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218872368] [2021-01-26 17:28:34,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:34,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:34,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946016504] [2021-01-26 17:28:34,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:34,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:34,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:34,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:34,761 INFO L87 Difference]: Start difference. First operand 20187 states. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-01-26 17:28:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:35,074 INFO L93 Difference]: Finished difference Result 24795 states and 96521 transitions. [2021-01-26 17:28:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-01-26 17:28:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:35,125 INFO L225 Difference]: With dead ends: 24795 [2021-01-26 17:28:35,125 INFO L226 Difference]: Without dead ends: 19419 [2021-01-26 17:28:35,125 INFO L769 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 [2021-01-26 17:28:35,126 INFO L78 Accepts]: Start accepts. Automaton has 19419 states. Word has length 53 [2021-01-26 17:28:35,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:35,126 INFO L481 AbstractCegarLoop]: Abstraction has 19419 states. [2021-01-26 17:28:35,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-01-26 17:28:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 19419 states. [2021-01-26 17:28:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:28:35,154 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:35,154 INFO L504 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] [2021-01-26 17:28:35,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:28:35,155 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:35,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2021-01-26 17:28:35,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:35,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227845899] [2021-01-26 17:28:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:35,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227845899] [2021-01-26 17:28:35,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:35,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:35,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612010291] [2021-01-26 17:28:35,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:35,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:35,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:35,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:35,290 INFO L87 Difference]: Start difference. First operand 19419 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-26 17:28:35,699 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-26 17:28:35,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:35,971 INFO L93 Difference]: Finished difference Result 20655 states and 79051 transitions. [2021-01-26 17:28:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:28:35,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-26 17:28:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:36,010 INFO L225 Difference]: With dead ends: 20655 [2021-01-26 17:28:36,010 INFO L226 Difference]: Without dead ends: 15663 [2021-01-26 17:28:36,011 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:28:36,011 INFO L78 Accepts]: Start accepts. Automaton has 15663 states. Word has length 54 [2021-01-26 17:28:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:36,011 INFO L481 AbstractCegarLoop]: Abstraction has 15663 states. [2021-01-26 17:28:36,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-26 17:28:36,011 INFO L276 IsEmpty]: Start isEmpty. Operand 15663 states. [2021-01-26 17:28:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-26 17:28:36,036 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:36,036 INFO L504 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] [2021-01-26 17:28:36,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-26 17:28:36,037 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:36,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1586012644, now seen corresponding path program 1 times [2021-01-26 17:28:36,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:36,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366389838] [2021-01-26 17:28:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:36,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366389838] [2021-01-26 17:28:36,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:36,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:28:36,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197940997] [2021-01-26 17:28:36,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:28:36,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:36,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:28:36,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:28:36,182 INFO L87 Difference]: Start difference. First operand 15663 states. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-01-26 17:28:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:36,492 INFO L93 Difference]: Finished difference Result 12396 states and 46101 transitions. [2021-01-26 17:28:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:28:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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 [2021-01-26 17:28:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:36,512 INFO L225 Difference]: With dead ends: 12396 [2021-01-26 17:28:36,512 INFO L226 Difference]: Without dead ends: 8508 [2021-01-26 17:28:36,512 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:28:36,513 INFO L78 Accepts]: Start accepts. Automaton has 8508 states. Word has length 55 [2021-01-26 17:28:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:36,513 INFO L481 AbstractCegarLoop]: Abstraction has 8508 states. [2021-01-26 17:28:36,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-01-26 17:28:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8508 states. [2021-01-26 17:28:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-26 17:28:36,526 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:36,526 INFO L504 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, 1, 1] [2021-01-26 17:28:36,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-26 17:28:36,526 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:36,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:36,526 INFO L82 PathProgramCache]: Analyzing trace with hash -237436163, now seen corresponding path program 1 times [2021-01-26 17:28:36,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:36,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018281965] [2021-01-26 17:28:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:36,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018281965] [2021-01-26 17:28:36,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:36,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-26 17:28:36,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165661249] [2021-01-26 17:28:36,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-26 17:28:36,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:36,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-26 17:28:36,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-26 17:28:36,656 INFO L87 Difference]: Start difference. First operand 8508 states. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-01-26 17:28:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:36,947 INFO L93 Difference]: Finished difference Result 5484 states and 19683 transitions. [2021-01-26 17:28:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-26 17:28:36,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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 57 [2021-01-26 17:28:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:36,953 INFO L225 Difference]: With dead ends: 5484 [2021-01-26 17:28:36,953 INFO L226 Difference]: Without dead ends: 2280 [2021-01-26 17:28:36,954 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-01-26 17:28:36,954 INFO L78 Accepts]: Start accepts. Automaton has 2280 states. Word has length 57 [2021-01-26 17:28:36,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:36,954 INFO L481 AbstractCegarLoop]: Abstraction has 2280 states. [2021-01-26 17:28:36,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-01-26 17:28:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states. [2021-01-26 17:28:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-26 17:28:36,958 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:36,959 INFO L504 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, 1, 1, 1, 1] [2021-01-26 17:28:36,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-26 17:28:36,959 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:36,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:36,959 INFO L82 PathProgramCache]: Analyzing trace with hash 665182430, now seen corresponding path program 1 times [2021-01-26 17:28:36,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:36,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374458605] [2021-01-26 17:28:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:37,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374458605] [2021-01-26 17:28:37,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:37,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:37,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332075909] [2021-01-26 17:28:37,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:37,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:37,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:37,512 INFO L87 Difference]: Start difference. First operand 2280 states. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-01-26 17:28:37,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:37,615 INFO L93 Difference]: Finished difference Result 1956 states and 6832 transitions. [2021-01-26 17:28:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:28:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-01-26 17:28:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:37,616 INFO L225 Difference]: With dead ends: 1956 [2021-01-26 17:28:37,616 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:28:37,616 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:37,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 59 [2021-01-26 17:28:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:37,617 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:28:37,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-01-26 17:28:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:28:37,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:28:37,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-26 17:28:37,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:28:37 BasicIcfg [2021-01-26 17:28:37,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:28:37,625 INFO L168 Benchmark]: Toolchain (without parser) took 24261.77 ms. Allocated memory was 302.0 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 277.7 MB in the beginning and 5.9 GB in the end (delta: -5.7 GB). Peak memory consumption was 905.9 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,625 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:28:37,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.40 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 283.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 281.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,627 INFO L168 Benchmark]: Boogie Preprocessor took 29.48 ms. Allocated memory is still 302.0 MB. Free memory was 281.6 MB in the beginning and 280.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,628 INFO L168 Benchmark]: RCFGBuilder took 609.11 ms. Allocated memory is still 302.0 MB. Free memory was 280.6 MB in the beginning and 255.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,629 INFO L168 Benchmark]: TraceAbstraction took 22881.02 ms. Allocated memory was 302.0 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 255.4 MB in the beginning and 5.9 GB in the end (delta: -5.7 GB). Peak memory consumption was 881.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:37,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 673.40 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 283.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 281.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.48 ms. Allocated memory is still 302.0 MB. Free memory was 281.6 MB in the beginning and 280.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 609.11 ms. Allocated memory is still 302.0 MB. Free memory was 280.6 MB in the beginning and 255.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22881.02 ms. Allocated memory was 302.0 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 255.4 MB in the beginning and 5.9 GB in the end (delta: -5.7 GB). Peak memory consumption was 881.4 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 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.7s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 1403 SDtfs, 2184 SDslu, 4471 SDs, 0 SdLazy, 498 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54311occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 622 NumberOfCodeBlocks, 622 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 83442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...