/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/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:45:04,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:45:04,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:45:04,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:45:04,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:45:04,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:45:04,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:45:04,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:45:04,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:45:04,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:45:04,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:45:04,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:45:04,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:45:04,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:45:04,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:45:04,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:45:04,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:45:04,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:45:04,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:45:04,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:45:04,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:45:04,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:45:04,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:45:04,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:45:04,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:45:04,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:45:04,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:45:04,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:45:04,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:45:04,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:45:04,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:45:04,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:45:04,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:45:04,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:45:04,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:45:04,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:45:04,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:45:04,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:45:04,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:45:04,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:45:04,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:45:04,543 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 [2021-01-20 14:45:04,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:45:04,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:45:04,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:45:04,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:45:04,573 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:45:04,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:45:04,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:45:04,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:45:04,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:45:04,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:45:04,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:45:04,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:45:04,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:45:04,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:45:04,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:45:04,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:45:04,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:45:04,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:45:04,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:45:04,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:45:04,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:45:04,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:45:04,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:45:04,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:45:04,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:45:04,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:45:04,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:45:04,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:45:04,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:45:04,578 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:45:04,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:45:05,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:45:05,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:45:05,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:45:05,049 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:45:05,050 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:45:05,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2021-01-20 14:45:05,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f22a954/9e194d2c863b4477ac7c4954cb1d9146/FLAG5ef17b79c [2021-01-20 14:45:05,999 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:45:05,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2021-01-20 14:45:06,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f22a954/9e194d2c863b4477ac7c4954cb1d9146/FLAG5ef17b79c [2021-01-20 14:45:06,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f22a954/9e194d2c863b4477ac7c4954cb1d9146 [2021-01-20 14:45:06,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:45:06,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:45:06,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:06,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:45:06,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:45:06,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:06,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa1b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06, skipping insertion in model container [2021-01-20 14:45:06,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:06,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:45:06,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:45:06,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:06,689 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:45:06,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:06,952 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:45:06,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06 WrapperNode [2021-01-20 14:45:06,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:06,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:06,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:45:06,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:45:06,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:07,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:45:07,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:45:07,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:45:07,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (1/1) ... [2021-01-20 14:45:07,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:45:07,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:45:07,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:45:07,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:45:07,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (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 [2021-01-20 14:45:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:45:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:45:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:45:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:45:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:45:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:45:07,223 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:45:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:45:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:45:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:45:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:45:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:45:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:45:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:45:07,228 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:45:07,819 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:45:07,820 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:45:07,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:07 BoogieIcfgContainer [2021-01-20 14:45:07,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:45:07,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:45:07,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:45:07,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:45:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:45:06" (1/3) ... [2021-01-20 14:45:07,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e587655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:07, skipping insertion in model container [2021-01-20 14:45:07,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:06" (2/3) ... [2021-01-20 14:45:07,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e587655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:07, skipping insertion in model container [2021-01-20 14:45:07,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:07" (3/3) ... [2021-01-20 14:45:07,831 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2021-01-20 14:45:07,847 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:45:07,848 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:45:07,851 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:45:07,852 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:45:07,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,881 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,882 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,882 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,882 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,882 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,882 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,885 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,885 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,885 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,886 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,890 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,890 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,905 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:07,907 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:45:07,921 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:45:07,947 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:45:07,947 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:45:07,947 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:45:07,947 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:45:07,947 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:45:07,948 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:45:07,948 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:45:07,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:45:07,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 14:45:08,597 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:45:08,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:45:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:45:08,682 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:08,683 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] [2021-01-20 14:45:08,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:08,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:08,691 INFO L82 PathProgramCache]: Analyzing trace with hash 31988960, now seen corresponding path program 1 times [2021-01-20 14:45:08,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:08,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137312357] [2021-01-20 14:45:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:09,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137312357] [2021-01-20 14:45:09,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:09,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:09,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234813954] [2021-01-20 14:45:09,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:09,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:09,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:09,420 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:45:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:09,896 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2021-01-20 14:45:09,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 14:45:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:09,971 INFO L225 Difference]: With dead ends: 10464 [2021-01-20 14:45:09,971 INFO L226 Difference]: Without dead ends: 3954 [2021-01-20 14:45:09,974 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 [2021-01-20 14:45:09,975 INFO L78 Accepts]: Start accepts. Automaton has 3954 states. Word has length 42 [2021-01-20 14:45:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:09,977 INFO L481 AbstractCegarLoop]: Abstraction has 3954 states. [2021-01-20 14:45:09,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:45:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states. [2021-01-20 14:45:09,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:45:09,998 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:09,999 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] [2021-01-20 14:45:10,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:45:10,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:10,008 INFO L82 PathProgramCache]: Analyzing trace with hash -95647071, now seen corresponding path program 1 times [2021-01-20 14:45:10,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:10,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664552311] [2021-01-20 14:45:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:10,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664552311] [2021-01-20 14:45:10,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:10,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:10,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435705433] [2021-01-20 14:45:10,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:10,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:10,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:10,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:10,227 INFO L87 Difference]: Start difference. First operand 3954 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:45:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:10,456 INFO L93 Difference]: Finished difference Result 4914 states and 16433 transitions. [2021-01-20 14:45:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-01-20 14:45:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:10,477 INFO L225 Difference]: With dead ends: 4914 [2021-01-20 14:45:10,478 INFO L226 Difference]: Without dead ends: 2464 [2021-01-20 14:45:10,478 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:45:10,479 INFO L78 Accepts]: Start accepts. Automaton has 2464 states. Word has length 44 [2021-01-20 14:45:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:10,479 INFO L481 AbstractCegarLoop]: Abstraction has 2464 states. [2021-01-20 14:45:10,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:45:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states. [2021-01-20 14:45:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:45:10,487 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:10,487 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] [2021-01-20 14:45:10,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:45:10,488 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:10,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1389736977, now seen corresponding path program 1 times [2021-01-20 14:45:10,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:10,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768044303] [2021-01-20 14:45:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:10,726 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-01-20 14:45:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:10,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768044303] [2021-01-20 14:45:10,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:10,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:10,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613849764] [2021-01-20 14:45:10,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:10,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:10,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:10,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:10,770 INFO L87 Difference]: Start difference. First operand 2464 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:11,039 INFO L93 Difference]: Finished difference Result 3464 states and 11256 transitions. [2021-01-20 14:45:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 14:45:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:11,054 INFO L225 Difference]: With dead ends: 3464 [2021-01-20 14:45:11,054 INFO L226 Difference]: Without dead ends: 1724 [2021-01-20 14:45:11,055 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:45:11,055 INFO L78 Accepts]: Start accepts. Automaton has 1724 states. Word has length 47 [2021-01-20 14:45:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:11,055 INFO L481 AbstractCegarLoop]: Abstraction has 1724 states. [2021-01-20 14:45:11,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states. [2021-01-20 14:45:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:45:11,061 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:11,062 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] [2021-01-20 14:45:11,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:45:11,062 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:11,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1496327244, now seen corresponding path program 1 times [2021-01-20 14:45:11,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:11,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112819319] [2021-01-20 14:45:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:11,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112819319] [2021-01-20 14:45:11,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:11,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:11,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902011302] [2021-01-20 14:45:11,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:11,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:11,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:11,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:11,279 INFO L87 Difference]: Start difference. First operand 1724 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) [2021-01-20 14:45:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:11,440 INFO L93 Difference]: Finished difference Result 2194 states and 6875 transitions. [2021-01-20 14:45:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:11,441 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 [2021-01-20 14:45:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:11,454 INFO L225 Difference]: With dead ends: 2194 [2021-01-20 14:45:11,455 INFO L226 Difference]: Without dead ends: 1618 [2021-01-20 14:45:11,456 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 [2021-01-20 14:45:11,457 INFO L78 Accepts]: Start accepts. Automaton has 1618 states. Word has length 49 [2021-01-20 14:45:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:11,458 INFO L481 AbstractCegarLoop]: Abstraction has 1618 states. [2021-01-20 14:45:11,458 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) [2021-01-20 14:45:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states. [2021-01-20 14:45:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:45:11,463 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:11,463 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] [2021-01-20 14:45:11,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:45:11,464 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:11,467 INFO L82 PathProgramCache]: Analyzing trace with hash 577338396, now seen corresponding path program 1 times [2021-01-20 14:45:11,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:11,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376989626] [2021-01-20 14:45:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:11,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376989626] [2021-01-20 14:45:11,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:11,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:11,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997506505] [2021-01-20 14:45:11,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:11,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:11,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:11,660 INFO L87 Difference]: Start difference. First operand 1618 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) [2021-01-20 14:45:11,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:11,835 INFO L93 Difference]: Finished difference Result 1777 states and 5456 transitions. [2021-01-20 14:45:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:11,836 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 [2021-01-20 14:45:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:11,846 INFO L225 Difference]: With dead ends: 1777 [2021-01-20 14:45:11,847 INFO L226 Difference]: Without dead ends: 1273 [2021-01-20 14:45:11,847 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:45:11,847 INFO L78 Accepts]: Start accepts. Automaton has 1273 states. Word has length 50 [2021-01-20 14:45:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:11,848 INFO L481 AbstractCegarLoop]: Abstraction has 1273 states. [2021-01-20 14:45:11,848 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) [2021-01-20 14:45:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states. [2021-01-20 14:45:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:45:11,852 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:11,853 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] [2021-01-20 14:45:11,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:45:11,853 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:11,854 INFO L82 PathProgramCache]: Analyzing trace with hash -270393692, now seen corresponding path program 1 times [2021-01-20 14:45:11,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:11,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989311369] [2021-01-20 14:45:11,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:12,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989311369] [2021-01-20 14:45:12,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:12,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:45:12,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260927654] [2021-01-20 14:45:12,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:45:12,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:12,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:45:12,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:45:12,016 INFO L87 Difference]: Start difference. First operand 1273 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:12,262 INFO L93 Difference]: Finished difference Result 1039 states and 3026 transitions. [2021-01-20 14:45:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:45:12,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 14:45:12,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:12,270 INFO L225 Difference]: With dead ends: 1039 [2021-01-20 14:45:12,270 INFO L226 Difference]: Without dead ends: 715 [2021-01-20 14:45:12,270 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:45:12,271 INFO L78 Accepts]: Start accepts. Automaton has 715 states. Word has length 51 [2021-01-20 14:45:12,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:12,272 INFO L481 AbstractCegarLoop]: Abstraction has 715 states. [2021-01-20 14:45:12,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states. [2021-01-20 14:45:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:45:12,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:12,276 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] [2021-01-20 14:45:12,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:45:12,277 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:12,278 INFO L82 PathProgramCache]: Analyzing trace with hash 796083109, now seen corresponding path program 1 times [2021-01-20 14:45:12,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:12,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082630088] [2021-01-20 14:45:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:12,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082630088] [2021-01-20 14:45:12,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:12,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:12,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515971116] [2021-01-20 14:45:12,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:12,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:12,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:12,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:12,488 INFO L87 Difference]: Start difference. First operand 715 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:45:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:12,610 INFO L93 Difference]: Finished difference Result 607 states and 1685 transitions. [2021-01-20 14:45:12,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:45:12,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 [2021-01-20 14:45:12,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:12,612 INFO L225 Difference]: With dead ends: 607 [2021-01-20 14:45:12,612 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:45:12,613 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:12,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-20 14:45:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:12,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:45:12,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:45:12,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:45:12,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:45:12,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:45:12,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:45:12 BasicIcfg [2021-01-20 14:45:12,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:45:12,625 INFO L168 Benchmark]: Toolchain (without parser) took 6403.96 ms. Allocated memory was 302.0 MB in the beginning and 597.7 MB in the end (delta: 295.7 MB). Free memory was 277.0 MB in the beginning and 497.0 MB in the end (delta: -220.0 MB). Peak memory consumption was 77.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,627 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:45:12,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.08 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.65 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 244.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,635 INFO L168 Benchmark]: Boogie Preprocessor took 72.82 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.5 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,637 INFO L168 Benchmark]: RCFGBuilder took 701.67 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 262.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,638 INFO L168 Benchmark]: TraceAbstraction took 4798.36 ms. Allocated memory was 302.0 MB in the beginning and 597.7 MB in the end (delta: 295.7 MB). Free memory was 261.5 MB in the beginning and 497.0 MB in the end (delta: -235.5 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:12,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 731.08 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.65 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 244.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.82 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.5 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 701.67 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 262.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4798.36 ms. Allocated memory was 302.0 MB in the beginning and 597.7 MB in the end (delta: 295.7 MB). Free memory was 261.5 MB in the beginning and 497.0 MB in the end (delta: -235.5 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 615 SDtfs, 943 SDslu, 1995 SDs, 0 SdLazy, 278 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 43243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...